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.",[1022,1275,1276],{"class":1161},"query",[1022,1278,1279],{"class":1036},"()\n",[1022,1281,1283,1285,1287,1289,1291,1294,1296],{"class":1024,"line":1282},11,[1022,1284,1273],{"class":1032},[1022,1286,952],{"class":1161},[1022,1288,1193],{"class":1036},[1022,1290,1212],{"class":1032},[1022,1292,1293],{"class":1055},"clientId",[1022,1295,1212],{"class":1032},[1022,1297,1267],{"class":1036},[1022,1299,1301,1303,1305,1307,1310,1312,1314,1316,1318,1320,1323,1325,1327,1329,1331,1333,1335,1338,1341,1343],{"class":1024,"line":1300},12,[1022,1302,1273],{"class":1032},[1022,1304,1006],{"class":1161},[1022,1306,1193],{"class":1036},[1022,1308,1309],{"class":1032},"{",[1022,1311,1175],{"class":1111},[1022,1313,1115],{"class":1032},[1022,1315,1069],{"class":1161},[1022,1317,1193],{"class":1036},[1022,1319,1212],{"class":1032},[1022,1321,1322],{"class":1055},"taxAmount",[1022,1324,1212],{"class":1032},[1022,1326,1233],{"class":1036},[1022,1328,1040],{"class":1032},[1022,1330,1074],{"class":1111},[1022,1332,1115],{"class":1032},[1022,1334,1074],{"class":1161},[1022,1336,1337],{"class":1036},"() ",[1022,1339,1340],{"class":1032},"}",[1022,1342,1233],{"class":1036},[1022,1344,1215],{"class":1032},[1022,1346,1348,1351,1353,1355,1358,1360,1363,1366,1368,1370],{"class":1024,"line":1347},13,[1022,1349,1350],{"class":1161},"  rowKey",[1022,1352,1115],{"class":1032},[1022,1354,1226],{"class":1032},[1022,1356,1357],{"class":1229},"row",[1022,1359,1233],{"class":1032},[1022,1361,1362],{"class":1098}," =>",[1022,1364,1365],{"class":1036}," row",[1022,1367,976],{"class":1032},[1022,1369,1293],{"class":1036},[1022,1371,1215],{"class":1032},[1022,1373,1375,1378,1380,1383,1385,1387,1389,1392,1394],{"class":1024,"line":1374},14,[1022,1376,1377],{"class":1111},"  sources",[1022,1379,1115],{"class":1032},[1022,1381,1382],{"class":1036}," [",[1022,1384,1212],{"class":1032},[1022,1386,1262],{"class":1055},[1022,1388,1212],{"class":1032},[1022,1390,1391],{"class":1036},"]",[1022,1393,1040],{"class":1032},[1022,1395,1397],{"class":1396},"sHwdD","  \u002F\u002F required when query() returns an aggregate\n",[1022,1399,1401,1404,1406,1408,1411,1413],{"class":1024,"line":1400},15,[1022,1402,1403],{"class":1111},"  refresh",[1022,1405,1115],{"class":1032},[1022,1407,1052],{"class":1032},[1022,1409,1410],{"class":1055},"eager",[1022,1412,1212],{"class":1032},[1022,1414,1215],{"class":1032},[1022,1416,1418,1420],{"class":1024,"line":1417},16,[1022,1419,1340],{"class":1032},[1022,1421,1267],{"class":1036},[1022,1423,1425],{"class":1024,"line":1424},17,[1022,1426,1092],{"emptyLinePlaceholder":1091},[1022,1428,1430,1432,1435,1437,1440,1442,1444],{"class":1024,"line":1429},18,[1022,1431,1152],{"class":1098},[1022,1433,1434],{"class":1036}," db ",[1022,1436,1158],{"class":1032},[1022,1438,1439],{"class":1028}," await",[1022,1441,1037],{"class":1161},[1022,1443,1193],{"class":1036},[1022,1445,1196],{"class":1032},[1022,1447,1449,1452,1454,1457],{"class":1024,"line":1448},19,[1022,1450,1451],{"class":1111},"  store",[1022,1453,1115],{"class":1032},[1022,1455,1456],{"class":1396}," \u002F* your NoydbStore *\u002F",[1022,1458,1215],{"class":1032},[1022,1460,1462,1465,1467,1469,1472,1474],{"class":1024,"line":1461},20,[1022,1463,1464],{"class":1111},"  user",[1022,1466,1115],{"class":1032},[1022,1468,1052],{"class":1032},[1022,1470,1471],{"class":1055},"alice",[1022,1473,1212],{"class":1032},[1022,1475,1215],{"class":1032},[1022,1477,1479,1482,1484,1486,1489,1491],{"class":1024,"line":1478},21,[1022,1480,1481],{"class":1111},"  secret",[1022,1483,1115],{"class":1032},[1022,1485,1052],{"class":1032},[1022,1487,1488],{"class":1055},"a-strong-secret",[1022,1490,1212],{"class":1032},[1022,1492,1215],{"class":1032},[1022,1494,1496,1499,1501,1504],{"class":1024,"line":1495},22,[1022,1497,1498],{"class":1111},"  materializedViewStrategies",[1022,1500,1115],{"class":1032},[1022,1502,1503],{"class":1036}," [pnd1]",[1022,1505,1215],{"class":1032},[1022,1507,1509,1511],{"class":1024,"line":1508},23,[1022,1510,1340],{"class":1032},[1022,1512,1267],{"class":1036},[946,1514,1515,1518,1519,1521],{},[950,1516,1517],{},"materializedViewStrategies"," is the only way to register a materialized view — without it, no\n",[950,1520,961],{}," strategy runs.",[941,1523,1525],{"id":1524},"usage","Usage",[1527,1528,1530],"h3",{"id":1529},"registering-a-query-form-view-and-reading-its-output","Registering a query-form view and reading its output",[946,1532,1533,1534,1536,1537,1540,1541,1544,1545,1548],{},"The ",[950,1535,1276],{}," callback runs at registration and again on every refresh. Its result — a plain\n",[950,1538,1539],{},"Query\u003CT>",", or a ",[950,1542,1543],{},"groupBy().aggregate()"," chain — is read out through the normal collection API,\nunder the output collection name (",[950,1546,1547],{},"name"," by default):",[1013,1550,1552],{"className":1015,"code":1551,"language":1017,"meta":1018,"style":1018},"const vault = await db.openVault('demo')\n\nawait vault.collection\u003CCompensation>('compensations').put('c-1', {\n  id: 'c-1', clientId: 'acme', taxAmount: 120,\n})\nawait vault.collection\u003CCompensation>('compensations').put('c-2', {\n  id: 'c-2', clientId: 'acme', taxAmount: 80,\n})\n\nconst row = await vault.collection('pnd1').get('acme')\n\u002F\u002F → { clientId: 'acme', tax: 200, count: 2, _materializedFrom: { mvName: 'pnd1', ... } }\n",[950,1553,1554,1584,1588,1634,1672,1678,1721,1756,1762,1766,1808],{"__ignoreMap":1018},[1022,1555,1556,1558,1561,1563,1565,1568,1570,1573,1575,1577,1580,1582],{"class":1024,"line":1025},[1022,1557,1152],{"class":1098},[1022,1559,1560],{"class":1036}," vault ",[1022,1562,1158],{"class":1032},[1022,1564,1439],{"class":1028},[1022,1566,1567],{"class":1036}," db",[1022,1569,976],{"class":1032},[1022,1571,1572],{"class":1161},"openVault",[1022,1574,1193],{"class":1036},[1022,1576,1212],{"class":1032},[1022,1578,1579],{"class":1055},"demo",[1022,1581,1212],{"class":1032},[1022,1583,1267],{"class":1036},[1022,1585,1586],{"class":1024,"line":1062},[1022,1587,1092],{"emptyLinePlaceholder":1091},[1022,1589,1590,1593,1596,1598,1600,1602,1604,1606,1608,1610,1612,1614,1616,1618,1620,1622,1624,1627,1629,1631],{"class":1024,"line":1088},[1022,1591,1592],{"class":1028},"await",[1022,1594,1595],{"class":1036}," vault",[1022,1597,976],{"class":1032},[1022,1599,957],{"class":1161},[1022,1601,1249],{"class":1032},[1022,1603,1252],{"class":1102},[1022,1605,1255],{"class":1032},[1022,1607,1193],{"class":1036},[1022,1609,1212],{"class":1032},[1022,1611,1262],{"class":1055},[1022,1613,1212],{"class":1032},[1022,1615,1233],{"class":1036},[1022,1617,976],{"class":1032},[1022,1619,975],{"class":1161},[1022,1621,1193],{"class":1036},[1022,1623,1212],{"class":1032},[1022,1625,1626],{"class":1055},"c-1",[1022,1628,1212],{"class":1032},[1022,1630,1040],{"class":1032},[1022,1632,1633],{"class":1032}," {\n",[1022,1635,1636,1639,1641,1643,1645,1647,1649,1651,1653,1655,1658,1660,1662,1664,1666,1670],{"class":1024,"line":1095},[1022,1637,1638],{"class":1111},"  id",[1022,1640,1115],{"class":1032},[1022,1642,1052],{"class":1032},[1022,1644,1626],{"class":1055},[1022,1646,1212],{"class":1032},[1022,1648,1040],{"class":1032},[1022,1650,1124],{"class":1111},[1022,1652,1115],{"class":1032},[1022,1654,1052],{"class":1032},[1022,1656,1657],{"class":1055},"acme",[1022,1659,1212],{"class":1032},[1022,1661,1040],{"class":1032},[1022,1663,1133],{"class":1111},[1022,1665,1115],{"class":1032},[1022,1667,1669],{"class":1668},"sbssI"," 120",[1022,1671,1215],{"class":1032},[1022,1673,1674,1676],{"class":1024,"line":1144},[1022,1675,1340],{"class":1032},[1022,1677,1267],{"class":1036},[1022,1679,1680,1682,1684,1686,1688,1690,1692,1694,1696,1698,1700,1702,1704,1706,1708,1710,1712,1715,1717,1719],{"class":1024,"line":1149},[1022,1681,1592],{"class":1028},[1022,1683,1595],{"class":1036},[1022,1685,976],{"class":1032},[1022,1687,957],{"class":1161},[1022,1689,1249],{"class":1032},[1022,1691,1252],{"class":1102},[1022,1693,1255],{"class":1032},[1022,1695,1193],{"class":1036},[1022,1697,1212],{"class":1032},[1022,1699,1262],{"class":1055},[1022,1701,1212],{"class":1032},[1022,1703,1233],{"class":1036},[1022,1705,976],{"class":1032},[1022,1707,975],{"class":1161},[1022,1709,1193],{"class":1036},[1022,1711,1212],{"class":1032},[1022,1713,1714],{"class":1055},"c-2",[1022,1716,1212],{"class":1032},[1022,1718,1040],{"class":1032},[1022,1720,1633],{"class":1032},[1022,1722,1723,1725,1727,1729,1731,1733,1735,1737,1739,1741,1743,1745,1747,1749,1751,1754],{"class":1024,"line":1199},[1022,1724,1638],{"class":1111},[1022,1726,1115],{"class":1032},[1022,1728,1052],{"class":1032},[1022,1730,1714],{"class":1055},[1022,1732,1212],{"class":1032},[1022,1734,1040],{"class":1032},[1022,1736,1124],{"class":1111},[1022,1738,1115],{"class":1032},[1022,1740,1052],{"class":1032},[1022,1742,1657],{"class":1055},[1022,1744,1212],{"class":1032},[1022,1746,1040],{"class":1032},[1022,1748,1133],{"class":1111},[1022,1750,1115],{"class":1032},[1022,1752,1753],{"class":1668}," 80",[1022,1755,1215],{"class":1032},[1022,1757,1758,1760],{"class":1024,"line":1218},[1022,1759,1340],{"class":1032},[1022,1761,1267],{"class":1036},[1022,1763,1764],{"class":1024,"line":1239},[1022,1765,1092],{"emptyLinePlaceholder":1091},[1022,1767,1768,1770,1773,1775,1777,1779,1781,1783,1785,1787,1789,1791,1793,1795,1798,1800,1802,1804,1806],{"class":1024,"line":1270},[1022,1769,1152],{"class":1098},[1022,1771,1772],{"class":1036}," row ",[1022,1774,1158],{"class":1032},[1022,1776,1439],{"class":1028},[1022,1778,1595],{"class":1036},[1022,1780,976],{"class":1032},[1022,1782,957],{"class":1161},[1022,1784,1193],{"class":1036},[1022,1786,1212],{"class":1032},[1022,1788,1209],{"class":1055},[1022,1790,1212],{"class":1032},[1022,1792,1233],{"class":1036},[1022,1794,976],{"class":1032},[1022,1796,1797],{"class":1161},"get",[1022,1799,1193],{"class":1036},[1022,1801,1212],{"class":1032},[1022,1803,1657],{"class":1055},[1022,1805,1212],{"class":1032},[1022,1807,1267],{"class":1036},[1022,1809,1810],{"class":1024,"line":1282},[1022,1811,1812],{"class":1396},"\u002F\u002F → { clientId: 'acme', tax: 200, count: 2, _materializedFrom: { mvName: 'pnd1', ... } }\n",[1527,1814,1816],{"id":1815},"union-form-combining-several-source-collections","UNION form — combining several source collections",[946,1818,1819,1822,1823,1826,1827,968,1829,1831,1832,1834],{},[950,1820,1821],{},"unionSources"," reads rows from several sibling collections, projects each through a per-arm ",[950,1824,1825],{},"map","\ninto one unified row shape, concatenates the streams, then optionally ",[950,1828,952],{},[950,1830,1006],{},"s the\nresult. It is mutually exclusive with ",[950,1833,1276],{}," — a strategy declares exactly one.",[1013,1836,1838],{"className":1015,"code":1837,"language":1017,"meta":1018,"style":1018},"import { withMaterializedView } from '@noy-db\u002Fhub'\nimport { sum } from '@noy-db\u002Fhub\u002Freduce'\n\nwithMaterializedView\u003C{ period: string; vat: number }>({\n  name: 'monthlyVat',\n  unionSources: [\n    { collection: 'taxReceipts', map: r => ({ period: r.issuedAt.slice(0, 7), vat:  r.vatAmount }) },\n    { collection: 'creditNotes', map: r => ({ period: r.issuedAt.slice(0, 7), vat: -r.vatAmount }) },\n  ],\n  groupBy: 'period',\n  aggregate: { vat: sum('vat') },\n  rowKey: row => row.period,\n  refresh: 'eager',\n})\n",[950,1839,1840,1858,1876,1880,1909,1924,1934,2017,2092,2099,2115,2143,2161,2175],{"__ignoreMap":1018},[1022,1841,1842,1844,1846,1848,1850,1852,1854,1856],{"class":1024,"line":1025},[1022,1843,1029],{"class":1028},[1022,1845,1033],{"class":1032},[1022,1847,1043],{"class":1036},[1022,1849,1046],{"class":1032},[1022,1851,1049],{"class":1028},[1022,1853,1052],{"class":1032},[1022,1855,1056],{"class":1055},[1022,1857,1059],{"class":1032},[1022,1859,1860,1862,1864,1866,1868,1870,1872,1874],{"class":1024,"line":1062},[1022,1861,1029],{"class":1028},[1022,1863,1033],{"class":1032},[1022,1865,1069],{"class":1036},[1022,1867,1046],{"class":1032},[1022,1869,1049],{"class":1028},[1022,1871,1052],{"class":1032},[1022,1873,1083],{"class":1055},[1022,1875,1059],{"class":1032},[1022,1877,1878],{"class":1024,"line":1088},[1022,1879,1092],{"emptyLinePlaceholder":1091},[1022,1881,1882,1885,1887,1890,1892,1894,1896,1899,1901,1903,1905,1907],{"class":1024,"line":1095},[1022,1883,1884],{"class":1161},"withMaterializedView",[1022,1886,1164],{"class":1032},[1022,1888,1889],{"class":1111}," period",[1022,1891,1115],{"class":1032},[1022,1893,1118],{"class":1102},[1022,1895,1121],{"class":1032},[1022,1897,1898],{"class":1111}," vat",[1022,1900,1115],{"class":1032},[1022,1902,1138],{"class":1102},[1022,1904,1190],{"class":1032},[1022,1906,1193],{"class":1036},[1022,1908,1196],{"class":1032},[1022,1910,1911,1913,1915,1917,1920,1922],{"class":1024,"line":1144},[1022,1912,1202],{"class":1111},[1022,1914,1115],{"class":1032},[1022,1916,1052],{"class":1032},[1022,1918,1919],{"class":1055},"monthlyVat",[1022,1921,1212],{"class":1032},[1022,1923,1215],{"class":1032},[1022,1925,1926,1929,1931],{"class":1024,"line":1149},[1022,1927,1928],{"class":1111},"  unionSources",[1022,1930,1115],{"class":1032},[1022,1932,1933],{"class":1036}," [\n",[1022,1935,1936,1939,1942,1944,1946,1949,1951,1953,1956,1958,1961,1963,1965,1967,1969,1971,1973,1975,1978,1980,1983,1985,1988,1990,1993,1995,1997,1999,2001,2004,2006,2009,2011,2014],{"class":1024,"line":1199},[1022,1937,1938],{"class":1032},"    {",[1022,1940,1941],{"class":1111}," collection",[1022,1943,1115],{"class":1032},[1022,1945,1052],{"class":1032},[1022,1947,1948],{"class":1055},"taxReceipts",[1022,1950,1212],{"class":1032},[1022,1952,1040],{"class":1032},[1022,1954,1955],{"class":1161}," map",[1022,1957,1115],{"class":1032},[1022,1959,1960],{"class":1229}," r",[1022,1962,1362],{"class":1098},[1022,1964,1226],{"class":1036},[1022,1966,1309],{"class":1032},[1022,1968,1889],{"class":1111},[1022,1970,1115],{"class":1032},[1022,1972,1960],{"class":1036},[1022,1974,976],{"class":1032},[1022,1976,1977],{"class":1036},"issuedAt",[1022,1979,976],{"class":1032},[1022,1981,1982],{"class":1161},"slice",[1022,1984,1193],{"class":1036},[1022,1986,1987],{"class":1668},"0",[1022,1989,1040],{"class":1032},[1022,1991,1992],{"class":1668}," 7",[1022,1994,1233],{"class":1036},[1022,1996,1040],{"class":1032},[1022,1998,1898],{"class":1111},[1022,2000,1115],{"class":1032},[1022,2002,2003],{"class":1036},"  r",[1022,2005,976],{"class":1032},[1022,2007,2008],{"class":1036},"vatAmount ",[1022,2010,1340],{"class":1032},[1022,2012,2013],{"class":1036},") ",[1022,2015,2016],{"class":1032},"},\n",[1022,2018,2019,2021,2023,2025,2027,2030,2032,2034,2036,2038,2040,2042,2044,2046,2048,2050,2052,2054,2056,2058,2060,2062,2064,2066,2068,2070,2072,2074,2076,2079,2082,2084,2086,2088,2090],{"class":1024,"line":1218},[1022,2020,1938],{"class":1032},[1022,2022,1941],{"class":1111},[1022,2024,1115],{"class":1032},[1022,2026,1052],{"class":1032},[1022,2028,2029],{"class":1055},"creditNotes",[1022,2031,1212],{"class":1032},[1022,2033,1040],{"class":1032},[1022,2035,1955],{"class":1161},[1022,2037,1115],{"class":1032},[1022,2039,1960],{"class":1229},[1022,2041,1362],{"class":1098},[1022,2043,1226],{"class":1036},[1022,2045,1309],{"class":1032},[1022,2047,1889],{"class":1111},[1022,2049,1115],{"class":1032},[1022,2051,1960],{"class":1036},[1022,2053,976],{"class":1032},[1022,2055,1977],{"class":1036},[1022,2057,976],{"class":1032},[1022,2059,1982],{"class":1161},[1022,2061,1193],{"class":1036},[1022,2063,1987],{"class":1668},[1022,2065,1040],{"class":1032},[1022,2067,1992],{"class":1668},[1022,2069,1233],{"class":1036},[1022,2071,1040],{"class":1032},[1022,2073,1898],{"class":1111},[1022,2075,1115],{"class":1032},[1022,2077,2078],{"class":1032}," -",[1022,2080,2081],{"class":1036},"r",[1022,2083,976],{"class":1032},[1022,2085,2008],{"class":1036},[1022,2087,1340],{"class":1032},[1022,2089,2013],{"class":1036},[1022,2091,2016],{"class":1032},[1022,2093,2094,2097],{"class":1024,"line":1239},[1022,2095,2096],{"class":1036},"  ]",[1022,2098,1215],{"class":1032},[1022,2100,2101,2104,2106,2108,2111,2113],{"class":1024,"line":1270},[1022,2102,2103],{"class":1111},"  groupBy",[1022,2105,1115],{"class":1032},[1022,2107,1052],{"class":1032},[1022,2109,2110],{"class":1055},"period",[1022,2112,1212],{"class":1032},[1022,2114,1215],{"class":1032},[1022,2116,2117,2120,2122,2124,2126,2128,2130,2132,2134,2137,2139,2141],{"class":1024,"line":1282},[1022,2118,2119],{"class":1111},"  aggregate",[1022,2121,1115],{"class":1032},[1022,2123,1033],{"class":1032},[1022,2125,1898],{"class":1111},[1022,2127,1115],{"class":1032},[1022,2129,1069],{"class":1161},[1022,2131,1193],{"class":1036},[1022,2133,1212],{"class":1032},[1022,2135,2136],{"class":1055},"vat",[1022,2138,1212],{"class":1032},[1022,2140,2013],{"class":1036},[1022,2142,2016],{"class":1032},[1022,2144,2145,2147,2149,2151,2153,2155,2157,2159],{"class":1024,"line":1300},[1022,2146,1350],{"class":1161},[1022,2148,1115],{"class":1032},[1022,2150,1365],{"class":1229},[1022,2152,1362],{"class":1098},[1022,2154,1365],{"class":1036},[1022,2156,976],{"class":1032},[1022,2158,2110],{"class":1036},[1022,2160,1215],{"class":1032},[1022,2162,2163,2165,2167,2169,2171,2173],{"class":1024,"line":1347},[1022,2164,1403],{"class":1111},[1022,2166,1115],{"class":1032},[1022,2168,1052],{"class":1032},[1022,2170,1410],{"class":1055},[1022,2172,1212],{"class":1032},[1022,2174,1215],{"class":1032},[1022,2176,2177,2179],{"class":1024,"line":1374},[1022,2178,1340],{"class":1032},[1022,2180,1267],{"class":1036},[946,2182,2183,2184,2187,2188,2190],{},"A single-arm union is also valid — it lets you map → group → aggregate over one collection with a\n",[2185,2186,637],"em",{}," bucket key (e.g. a month sliced from a date field), which the query form's stored-field\n",[950,2189,952],{}," can't express.",[1527,2192,2194],{"id":2193},"triggering-a-manual-refresh","Triggering a manual refresh",[946,2196,2197,2198,2201],{},"For ",[950,2199,2200],{},"refresh: 'manual'"," views, only an explicit call re-materializes:",[1013,2203,2205],{"className":1015,"code":2204,"language":1017,"meta":1018,"style":1018},"const { written, deleted, failed } = await vault.refreshView('pnd1')\n\u002F\u002F → { written: 12, deleted: 1, failed: 0 }\n",[950,2206,2207,2249],{"__ignoreMap":1018},[1022,2208,2209,2211,2213,2216,2218,2221,2223,2226,2228,2230,2232,2234,2236,2239,2241,2243,2245,2247],{"class":1024,"line":1025},[1022,2210,1152],{"class":1098},[1022,2212,1033],{"class":1032},[1022,2214,2215],{"class":1036}," written",[1022,2217,1040],{"class":1032},[1022,2219,2220],{"class":1036}," deleted",[1022,2222,1040],{"class":1032},[1022,2224,2225],{"class":1036}," failed ",[1022,2227,1340],{"class":1032},[1022,2229,1106],{"class":1032},[1022,2231,1439],{"class":1028},[1022,2233,1595],{"class":1036},[1022,2235,976],{"class":1032},[1022,2237,2238],{"class":1161},"refreshView",[1022,2240,1193],{"class":1036},[1022,2242,1212],{"class":1032},[1022,2244,1209],{"class":1055},[1022,2246,1212],{"class":1032},[1022,2248,1267],{"class":1036},[1022,2250,2251],{"class":1024,"line":1062},[1022,2252,2253],{"class":1396},"\u002F\u002F → { written: 12, deleted: 1, failed: 0 }\n",[946,2255,2256,2257,2260,2261,2263,2264,2267],{},"Throws a plain ",[950,2258,2259],{},"Error"," if ",[950,2262,1547],{}," isn't a registered view; it's a no-op\n(",[950,2265,2266],{},"{ written: 0, deleted: 0, failed: 0 }",") if the vault has no materialized-view strategies\nregistered at all.",[941,2269,2271],{"id":2270},"api-reference","API reference",[1527,2273,2275],{"id":2274},"withmaterializedviewspec",[950,2276,2277],{},"withMaterializedView(spec)",[946,2279,2280,2281,2284,2285,2287,2288,2291,2292,2295,2296,2299],{},"Registers a materialized view. Throws ",[950,2282,2283],{},"ValidationError"," for a missing ",[950,2286,1547],{}," or ",[950,2289,2290],{},"rowKey",", or an\ninvalid ",[950,2293,2294],{},"refresh"," value; throws ",[950,2297,2298],{},"MaterializedViewConfigError"," for invalid UNION-form combinations\n(see Limits below).",[2301,2302,2303,2320],"table",{},[2304,2305,2306],"thead",{},[2307,2308,2309,2313,2317],"tr",{},[2310,2311,2312],"th",{},"Field",[2310,2314,2316],{"align":2315},"center","Required?",[2310,2318,2319],{},"Meaning",[2321,2322,2323,2336,2351,2370,2382,2394,2423,2436,2450,2479,2499,2516,2536,2552,2568,2587],"tbody",{},[2307,2324,2325,2330,2333],{},[2326,2327,2328],"td",{},[950,2329,1547],{},[2326,2331,2332],{"align":2315},"yes",[2326,2334,2335],{},"Stable identity. Default output collection name.",[2307,2337,2338,2343,2348],{},[2326,2339,2340],{},[950,2341,2342],{},"query: (db) => Query\u003CTRow>",[2326,2344,2345,2346,1233],{"align":2315},"yes (unless ",[950,2347,1821],{},[2326,2349,2350],{},"Materialized query, run at registration and on every refresh.",[2307,2352,2353,2358,2362],{},[2326,2354,2355],{},[950,2356,2357],{},"unionSources: UnionSource[]",[2326,2359,2345,2360,1233],{"align":2315},[950,2361,1276],{},[2326,2363,2364,2365,2367,2368,976],{},"Sibling collections to read + a per-arm ",[950,2366,1825],{}," into the unified row shape. Mutually exclusive with ",[950,2369,1276],{},[2307,2371,2372,2377,2379],{},[2326,2373,2374],{},[950,2375,2376],{},"rowKey: (row) => string",[2326,2378,2332],{"align":2315},[2326,2380,2381],{},"Stable id derivation. Explicit — there is no default.",[2307,2383,2384,2389,2391],{},[2326,2385,2386],{},[950,2387,2388],{},"refresh: 'eager' | 'lazy' | 'manual'",[2326,2390,2332],{"align":2315},[2326,2392,2393],{},"See refresh modes below.",[2307,2395,2396,2401,2408],{},[2326,2397,2398],{},[950,2399,2400],{},"sources?: string[]",[2326,2402,2403,2404,2407],{"align":2315},"only when ",[950,2405,2406],{},"query()"," returns an aggregate\u002FgroupBy",[2326,2409,2410,2411,2413,2414,2417,2418,2420,2421,976],{},"Explicit dependencies; a plain ",[950,2412,1539],{}," is auto-analyzed. Not needed for the union's own arm collections (those come from ",[950,2415,2416],{},"unionSources[].collection","), but any collection listed here is added to the dependency set — required for a per-arm ",[950,2419,994],{},"'s right-side collection, or registration throws ",[950,2422,2298],{},[2307,2424,2425,2430,2433],{},[2326,2426,2427],{},[950,2428,2429],{},"groupBy?: string | string[]",[2326,2431,2432],{"align":2315},"UNION mode only",[2326,2434,2435],{},"Group-key field(s) applied to the concatenated mapped-row stream.",[2307,2437,2438,2443,2445],{},[2326,2439,2440],{},[950,2441,2442],{},"aggregate?: ReduceSpec",[2326,2444,2432],{"align":2315},[2326,2446,2447,2448,976],{},"Reduction applied per group after ",[950,2449,952],{},[2307,2451,2452,2457,2462],{},[2326,2453,2454],{},[950,2455,2456],{},"moneyFields?: Record\u003Cstring, MoneyDescriptor>",[2326,2458,2459,2460],{"align":2315},"UNION mode only, requires ",[950,2461,1006],{},[2326,2463,2464,2465,2467,2468,2467,2471,2474,2475,2478],{},"Makes ",[950,2466,971],{},"\u002F",[950,2469,2470],{},"min",[950,2472,2473],{},"max"," over the named fields exact ",[950,2476,2477],{},"BigInt"," arithmetic instead of float.",[2307,2480,2481,2486,2492],{},[2326,2482,2483],{},[950,2484,2485],{},"i18nLocale?: string",[2326,2487,2488,2489],{"align":2315},"Works in query-form and UNION mode; requires ",[950,2490,2491],{},"i18nFields",[2326,2493,2494,2495,2498],{},"Locale used to resolve ",[950,2496,2497],{},"i18nText"," group-key fields to stable strings before bucketing.",[2307,2500,2501,2506,2509],{},[2326,2502,2503],{},[950,2504,2505],{},"i18nFields?: Record\u003Cstring, I18nTextDescriptor>",[2326,2507,2508],{"align":2315},"Works in query-form and UNION mode",[2326,2510,2511,2512,2515],{},"i18n descriptors for the fields named in ",[950,2513,2514],{},"i18nLocale"," resolution.",[2307,2517,2518,2523,2526],{},[2326,2519,2520],{},[950,2521,2522],{},"predicates?: { [name]: { hash, fn } }",[2326,2524,2525],{"align":2315},"no",[2326,2527,2528,2529,2531,2532,2535],{},"Declared deterministic predicates callable from ",[950,2530,2406],{}," via ",[950,2533,2534],{},".wherePredicate(name, ctx?)",". Not supported on UNION strategies.",[2307,2537,2538,2543,2545],{},[2326,2539,2540],{},[950,2541,2542],{},"output?: { collection?, partition? }",[2326,2544,2525],{"align":2315},[2326,2546,2547,2548,2551],{},"Custom output collection name; ",[950,2549,2550],{},"partition"," is the same-collection cycle-break discriminator.",[2307,2553,2554,2559,2565],{},[2326,2555,2556],{},[950,2557,2558],{},"onEmpty?: 'delete' | 'keep'",[2326,2560,2561,2562],{"align":2315},"no, default ",[950,2563,2564],{},"'delete'",[2326,2566,2567],{},"What to do when a refresh yields zero rows for a previously-emitted key.",[2307,2569,2570,2575,2580],{},[2326,2571,2572],{},[950,2573,2574],{},"strict?: boolean",[2326,2576,2561,2577],{"align":2315},[950,2578,2579],{},"false",[2326,2581,2582,2583,2586],{},"Re-throw row-write failures so a wrapping ",[950,2584,2585],{},"withTransactions"," can roll back the source write.",[2307,2588,2589,2594,2599],{},[2326,2590,2591],{},[950,2592,2593],{},"maxRows?: number",[2326,2595,2561,2596],{"align":2315},[950,2597,2598],{},"100_000",[2326,2600,2601,2602,2605],{},"Row-count ceiling; throws ",[950,2603,2604],{},"MaterializedViewTooLargeError"," before any writes when exceeded.",[1527,2607,2608],{"id":2294},[950,2609,2294],{},[982,2611,2612,2628,2642],{},[985,2613,2614,2618,2619,968,2624,2627],{},[988,2615,2616],{},[950,2617,1410],{}," — every write or delete on a source collection re-runs the query inside the same\ntransaction, for every view that depends on it. Outputs land synchronously. Pairs with\n",[955,2620,2622],{"href":2621},".\u002Ftransactions",[950,2623,2585],{},[950,2625,2626],{},"strict: true"," for atomic source-and-view updates.",[985,2629,2630,2634,2635,2287,2638,2641],{},[988,2631,2632],{},[950,2633,719],{}," — source writes and deletes mark the view stale (in memory, not persisted across a\nvault close). The next read (",[950,2636,2637],{},".get(id)",[950,2639,2640],{},".list()",") on the view's output collection triggers\nthe re-materialize before returning. Good for expensive views with read-light workloads.",[985,2643,2644,2649,2650,2653],{},[988,2645,2646],{},[950,2647,2648],{},"manual"," — only ",[950,2651,2652],{},"vault.refreshView(name)"," triggers re-materialization. Useful for\ntime-dependent queries whose predicate context changes externally, or very expensive views that\nopt out of the source-write hook entirely.",[1527,2655,2657],{"id":2656},"vaultrefreshviewname",[950,2658,2652],{},[1013,2660,2662],{"className":1015,"code":2661,"language":1017,"meta":1018,"style":1018},"refreshView(name: string): Promise\u003C{ written: number; deleted: number; failed: number }>\n",[950,2663,2664],{"__ignoreMap":1018},[1022,2665,2666,2668,2671,2674,2676,2678,2680,2682,2684,2686,2688,2690,2692,2695,2697,2699],{"class":1024,"line":1025},[1022,2667,2238],{"class":1161},[1022,2669,2670],{"class":1036},"(name: string): ",[1022,2672,2673],{"class":1102},"Promise",[1022,2675,1164],{"class":1032},[1022,2677,2215],{"class":1102},[1022,2679,1115],{"class":1032},[1022,2681,1138],{"class":1036},[1022,2683,1121],{"class":1032},[1022,2685,2220],{"class":1102},[1022,2687,1115],{"class":1032},[1022,2689,1138],{"class":1036},[1022,2691,1121],{"class":1032},[1022,2693,2694],{"class":1102}," failed",[1022,2696,1115],{"class":1032},[1022,2698,1138],{"class":1036},[1022,2700,2701],{"class":1032}," }>\n",[946,2703,2704],{},"Runs the executor for the named view and returns the write\u002Ftombstone\u002Ffailure counts.",[1527,2706,2708],{"id":2707},"declared-deterministic-predicates","Declared deterministic predicates",[946,2710,2711,2712,2715,2716,2719,2720,2722,2723,1115],{},"Some filters can't be expressed as ",[950,2713,2714],{},".where(field, op, value)"," — date arithmetic, multi-field\nconditions, references to external time. ",[950,2717,2718],{},"predicates"," declares named functions the ",[950,2721,2406],{},"\ncallback can invoke via ",[950,2724,2534],{},[1013,2726,2728],{"className":1015,"code":2727,"language":1017,"meta":1018,"style":1018},"import { withMaterializedView } from '@noy-db\u002Fhub'\n\ntype Invoice = { id: string; status: string; dueDate: string }\n\nwithMaterializedView\u003CInvoice>({\n  name: 'overdue',\n  predicates: {\n    isOverdue: {\n      hash: 'is-overdue-v1',\n      fn: (inv, ctx) => inv.status === 'open' && inv.dueDate \u003C (ctx as { asOf: string }).asOf,\n    },\n  },\n  query: (db) => db.collection\u003CInvoice>('invoices').query()\n    .wherePredicate('isOverdue', { asOf: '2026-05-20' }),\n  rowKey: (r) => r.id,\n  refresh: 'eager',\n})\n",[950,2729,2730,2748,2752,2789,2793,2808,2823,2832,2841,2857,2934,2939,2944,2985,3024,3047,3061],{"__ignoreMap":1018},[1022,2731,2732,2734,2736,2738,2740,2742,2744,2746],{"class":1024,"line":1025},[1022,2733,1029],{"class":1028},[1022,2735,1033],{"class":1032},[1022,2737,1043],{"class":1036},[1022,2739,1046],{"class":1032},[1022,2741,1049],{"class":1028},[1022,2743,1052],{"class":1032},[1022,2745,1056],{"class":1055},[1022,2747,1059],{"class":1032},[1022,2749,2750],{"class":1024,"line":1062},[1022,2751,1092],{"emptyLinePlaceholder":1091},[1022,2753,2754,2756,2759,2761,2763,2765,2767,2769,2771,2774,2776,2778,2780,2783,2785,2787],{"class":1024,"line":1088},[1022,2755,1099],{"class":1098},[1022,2757,2758],{"class":1102}," Invoice",[1022,2760,1106],{"class":1032},[1022,2762,1033],{"class":1032},[1022,2764,1112],{"class":1111},[1022,2766,1115],{"class":1032},[1022,2768,1118],{"class":1102},[1022,2770,1121],{"class":1032},[1022,2772,2773],{"class":1111}," status",[1022,2775,1115],{"class":1032},[1022,2777,1118],{"class":1102},[1022,2779,1121],{"class":1032},[1022,2781,2782],{"class":1111}," dueDate",[1022,2784,1115],{"class":1032},[1022,2786,1118],{"class":1102},[1022,2788,1141],{"class":1032},[1022,2790,2791],{"class":1024,"line":1095},[1022,2792,1092],{"emptyLinePlaceholder":1091},[1022,2794,2795,2797,2799,2802,2804,2806],{"class":1024,"line":1144},[1022,2796,1884],{"class":1102},[1022,2798,1249],{"class":1032},[1022,2800,2801],{"class":1102},"Invoice",[1022,2803,1255],{"class":1032},[1022,2805,1193],{"class":1036},[1022,2807,1196],{"class":1032},[1022,2809,2810,2812,2814,2816,2819,2821],{"class":1024,"line":1149},[1022,2811,1202],{"class":1111},[1022,2813,1115],{"class":1032},[1022,2815,1052],{"class":1032},[1022,2817,2818],{"class":1055},"overdue",[1022,2820,1212],{"class":1032},[1022,2822,1215],{"class":1032},[1022,2824,2825,2828,2830],{"class":1024,"line":1199},[1022,2826,2827],{"class":1111},"  predicates",[1022,2829,1115],{"class":1032},[1022,2831,1633],{"class":1032},[1022,2833,2834,2837,2839],{"class":1024,"line":1218},[1022,2835,2836],{"class":1111},"    isOverdue",[1022,2838,1115],{"class":1032},[1022,2840,1633],{"class":1032},[1022,2842,2843,2846,2848,2850,2853,2855],{"class":1024,"line":1239},[1022,2844,2845],{"class":1111},"      hash",[1022,2847,1115],{"class":1032},[1022,2849,1052],{"class":1032},[1022,2851,2852],{"class":1055},"is-overdue-v1",[1022,2854,1212],{"class":1032},[1022,2856,1215],{"class":1032},[1022,2858,2859,2862,2864,2866,2869,2871,2874,2876,2878,2881,2883,2886,2889,2891,2894,2896,2899,2901,2903,2906,2909,2912,2915,2918,2921,2923,2925,2927,2930,2932],{"class":1024,"line":1270},[1022,2860,2861],{"class":1111},"      fn",[1022,2863,1115],{"class":1032},[1022,2865,1226],{"class":1032},[1022,2867,2868],{"class":1229},"inv",[1022,2870,1040],{"class":1032},[1022,2872,2873],{"class":1229}," ctx",[1022,2875,1233],{"class":1032},[1022,2877,1362],{"class":1098},[1022,2879,2880],{"class":1102}," inv",[1022,2882,976],{"class":1032},[1022,2884,2885],{"class":1102},"status",[1022,2887,2888],{"class":1036}," === ",[1022,2890,1212],{"class":1032},[1022,2892,2893],{"class":1055},"open",[1022,2895,1212],{"class":1032},[1022,2897,2898],{"class":1036}," && ",[1022,2900,2868],{"class":1111},[1022,2902,976],{"class":1036},[1022,2904,2905],{"class":1111},"dueDate",[1022,2907,2908],{"class":1036}," \u003C (",[1022,2910,2911],{"class":1111},"ctx",[1022,2913,2914],{"class":1111}," as",[1022,2916,2917],{"class":1036}," { ",[1022,2919,2920],{"class":1111},"asOf",[1022,2922,1115],{"class":1032},[1022,2924,1118],{"class":1102},[1022,2926,1046],{"class":1032},[1022,2928,2929],{"class":1036},").",[1022,2931,2920],{"class":1111},[1022,2933,1215],{"class":1032},[1022,2935,2936],{"class":1024,"line":1282},[1022,2937,2938],{"class":1032},"    },\n",[1022,2940,2941],{"class":1024,"line":1300},[1022,2942,2943],{"class":1032},"  },\n",[1022,2945,2946,2948,2950,2952,2954,2956,2958,2960,2962,2964,2966,2968,2970,2972,2974,2977,2979,2981,2983],{"class":1024,"line":1347},[1022,2947,1221],{"class":1161},[1022,2949,1115],{"class":1032},[1022,2951,1226],{"class":1032},[1022,2953,1230],{"class":1229},[1022,2955,1233],{"class":1032},[1022,2957,1362],{"class":1098},[1022,2959,1567],{"class":1102},[1022,2961,976],{"class":1032},[1022,2963,957],{"class":1102},[1022,2965,1249],{"class":1032},[1022,2967,2801],{"class":1102},[1022,2969,1255],{"class":1032},[1022,2971,1193],{"class":1036},[1022,2973,1212],{"class":1032},[1022,2975,2976],{"class":1055},"invoices",[1022,2978,1212],{"class":1032},[1022,2980,2929],{"class":1036},[1022,2982,1276],{"class":1102},[1022,2984,1279],{"class":1032},[1022,2986,2987,2990,2993,2995,2997,3000,3002,3004,3006,3009,3011,3013,3016,3018,3020,3022],{"class":1024,"line":1374},[1022,2988,2989],{"class":1036},"    .",[1022,2991,2992],{"class":1102},"wherePredicate",[1022,2994,1193],{"class":1036},[1022,2996,1212],{"class":1032},[1022,2998,2999],{"class":1055},"isOverdue",[1022,3001,1212],{"class":1032},[1022,3003,1040],{"class":1032},[1022,3005,1033],{"class":1032},[1022,3007,3008],{"class":1111}," asOf",[1022,3010,1115],{"class":1032},[1022,3012,1052],{"class":1032},[1022,3014,3015],{"class":1055},"2026-05-20",[1022,3017,1212],{"class":1032},[1022,3019,1046],{"class":1032},[1022,3021,1233],{"class":1036},[1022,3023,1215],{"class":1032},[1022,3025,3026,3028,3030,3032,3034,3036,3038,3040,3042,3045],{"class":1024,"line":1400},[1022,3027,1350],{"class":1161},[1022,3029,1115],{"class":1032},[1022,3031,1226],{"class":1032},[1022,3033,2081],{"class":1229},[1022,3035,1233],{"class":1032},[1022,3037,1362],{"class":1098},[1022,3039,1960],{"class":1102},[1022,3041,976],{"class":1032},[1022,3043,3044],{"class":1102},"id",[1022,3046,1215],{"class":1032},[1022,3048,3049,3051,3053,3055,3057,3059],{"class":1024,"line":1417},[1022,3050,1403],{"class":1229},[1022,3052,1115],{"class":1032},[1022,3054,1052],{"class":1032},[1022,3056,1410],{"class":1055},[1022,3058,1212],{"class":1032},[1022,3060,1215],{"class":1032},[1022,3062,3063],{"class":1024,"line":1424},[1022,3064,3065],{"class":1036},"})\n",[946,3067,3068,3069,3072,3073,3075,3076,3079,3080,3083,3084,3086,3087,3089,3090,3092,3093,3096,3097,3099,3100],{},"The predicate's ",[950,3070,3071],{},"hash"," plus a canonical-JSON hash of the ",[950,3074,2911],{}," argument both fold into the view's\n",[950,3077,3078],{},"queryHash"," (stamped into ",[950,3081,3082],{},"_materializedFrom",", below). Bumping ",[950,3085,3071],{}," — because the function's\nmeaning changed — or changing ",[950,3088,2911],{}," forces a refresh on the next visit. Consumer responsibility:\nbump ",[950,3091,3071],{}," whenever the predicate's semantics change; failing to do so after a non-equivalent\nchange leaves stale rows around until the next explicit refresh. Calling ",[950,3094,3095],{},".wherePredicate()"," on a\n",[950,3098,1539],{}," that wasn't produced by an MV declaring that predicate throws\n",[950,3101,3102],{},".wherePredicate(\"name\"): no predicates registered on this Query.",[1527,3104,3106],{"id":3105},"_materializedfrom",[950,3107,3082],{},[946,3109,3110],{},"Every materialized row carries:",[1013,3112,3115],{"className":3113,"code":3114,"language":141,"meta":1018,"style":1018},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"_materializedFrom\": {\n    \"mvName\": \"pnd1\",\n    \"queryHash\": \"9f2a1c7e4b0d3f8a1e6c5b2d7f4a9e0c1b3d6f8a2e5c7b0d4f1a9e3c6b8d0f2a\",\n    \"sourceVersions\": { \"compensations\": 7 },\n    \"materializedAt\": \"2026-05-21T00:00:00.000Z\"\n  }\n}\n",[950,3116,3117,3121,3135,3156,3175,3201,3220,3225],{"__ignoreMap":1018},[1022,3118,3119],{"class":1024,"line":1025},[1022,3120,1196],{"class":1032},[1022,3122,3123,3126,3128,3131,3133],{"class":1024,"line":1062},[1022,3124,3125],{"class":1032},"  \"",[1022,3127,3082],{"class":1098},[1022,3129,3130],{"class":1032},"\"",[1022,3132,1115],{"class":1032},[1022,3134,1633],{"class":1032},[1022,3136,3137,3140,3143,3145,3147,3150,3152,3154],{"class":1024,"line":1088},[1022,3138,3139],{"class":1032},"    \"",[1022,3141,3142],{"class":1102},"mvName",[1022,3144,3130],{"class":1032},[1022,3146,1115],{"class":1032},[1022,3148,3149],{"class":1032}," \"",[1022,3151,1209],{"class":1055},[1022,3153,3130],{"class":1032},[1022,3155,1215],{"class":1032},[1022,3157,3158,3160,3162,3164,3166,3168,3171,3173],{"class":1024,"line":1095},[1022,3159,3139],{"class":1032},[1022,3161,3078],{"class":1102},[1022,3163,3130],{"class":1032},[1022,3165,1115],{"class":1032},[1022,3167,3149],{"class":1032},[1022,3169,3170],{"class":1055},"9f2a1c7e4b0d3f8a1e6c5b2d7f4a9e0c1b3d6f8a2e5c7b0d4f1a9e3c6b8d0f2a",[1022,3172,3130],{"class":1032},[1022,3174,1215],{"class":1032},[1022,3176,3177,3179,3182,3184,3186,3188,3190,3192,3194,3196,3198],{"class":1024,"line":1144},[1022,3178,3139],{"class":1032},[1022,3180,3181],{"class":1102},"sourceVersions",[1022,3183,3130],{"class":1032},[1022,3185,1115],{"class":1032},[1022,3187,1033],{"class":1032},[1022,3189,3149],{"class":1032},[1022,3191,1262],{"class":1668},[1022,3193,3130],{"class":1032},[1022,3195,1115],{"class":1032},[1022,3197,1992],{"class":1668},[1022,3199,3200],{"class":1032}," },\n",[1022,3202,3203,3205,3208,3210,3212,3214,3217],{"class":1024,"line":1149},[1022,3204,3139],{"class":1032},[1022,3206,3207],{"class":1102},"materializedAt",[1022,3209,3130],{"class":1032},[1022,3211,1115],{"class":1032},[1022,3213,3149],{"class":1032},[1022,3215,3216],{"class":1055},"2026-05-21T00:00:00.000Z",[1022,3218,3219],{"class":1032},"\"\n",[1022,3221,3222],{"class":1024,"line":1199},[1022,3223,3224],{"class":1032},"  }\n",[1022,3226,3227],{"class":1024,"line":1218},[1022,3228,3229],{"class":1032},"}\n",[946,3231,3232],{},"Lives inside the encrypted payload, not the unencrypted envelope — the storage backend cannot\ninfer the view's dependency graph from listing records.",[1527,3234,3236],{"id":3235},"errors","Errors",[946,3238,3239,3240,3243,3244,1115],{},"All extend ",[950,3241,3242],{},"NoydbError",", importable from ",[950,3245,3246],{},"@noy-db\u002Fhub\u002Fmaterialized-views",[982,3248,3249,3255,3264,3273],{},[985,3250,3251,3254],{},[950,3252,3253],{},"MaterializedViewCycleError(path[])"," — the MV graph contains a cycle",[985,3256,3257,3260,3261,3263],{},[950,3258,3259],{},"MaterializedViewSourceUnknownError(mv, source)"," — ",[950,3262,998],{}," names a collection the vault doesn't know",[985,3265,3266,3260,3269,3272],{},[950,3267,3268],{},"MaterializedViewTooLargeError(mv, rowCount, limit)",[950,3270,3271],{},"maxRows"," exceeded",[985,3274,3275,3278],{},[950,3276,3277],{},"MaterializedViewConfigError(detail)"," — invalid strategy shape (see Limits below)",[941,3280,3282],{"id":3281},"limits-gotchas","Limits & gotchas",[982,3284,3285,3299,3329,3437,3454,3473,3487,3515,3535,3563,3576],{},[985,3286,3287,3295,3296,3298],{},[988,3288,3289,3291,3292,3294],{},[950,3290,1276],{}," and ",[950,3293,1821],{}," are mutually exclusive."," A strategy must declare exactly one;\nregistration throws ",[950,3297,2298],{}," if both or neither are set.",[985,3300,3301,3306,3307,3310,3311,3314,3315,3317,3318,3321,3322,3324,3325,3328],{},[988,3302,3303,3305],{},[950,3304,2290],{}," has no default."," It's required on every strategy, query-form or UNION. Since\n",[950,3308,3309],{},"0.7.0-pre.14"," an ",[2185,3312,3313],{},"absent"," ",[950,3316,2290],{}," and a ",[2185,3319,3320],{},"wrong-typed"," one are distinct errors: passing a field\n",[988,3323,1547],{}," — the shape every neighbouring option takes — used to report ",[950,3326,3327],{},"rowKey is required",", which\nnames absence and sends you looking for a missing line. It now says it must be a function, names\nthe type it received, and shows the fix.",[985,3330,3331,3337,3338,3341,3342,3345,3346,3349,3350,3353,3354,3357,3360,3361,3405,3407,3408,3411,3412,3415,3416,3419,3420,3426,3427,3429,3430,3433,3434,3436],{},[988,3332,3333,3334,3336],{},"A ",[950,3335,952],{}," on a VIRTUAL computed field is refused at registration"," — but the coverage is\npartial, and the boundary is worth knowing (noy-db#1269). A virtual field is evaluated on read\nand never stored, so the MV pipeline read the stored row, found nothing, and bucketed every row\nunder an ",[950,3339,3340],{},"undefined"," key: ",[988,3343,3344],{},"a well-formed aggregate carrying a wrong number",", on the one path\nwhere nobody re-checks the arithmetic. ",[950,3347,3348],{},"query().where()"," already refused the same field with\n",[950,3351,3352],{},"FieldNotQueryableError",", so the two halves of what reads as one query layer disagreed.",[3355,3356],"br",{},[988,3358,3359],{},"What decides coverage is where the grouping is expressed"," — not which source form you use:",[2301,3362,3363,3373],{},[2304,3364,3365],{},[2307,3366,3367,3370],{},[2310,3368,3369],{},"how the view groups",[2310,3371,3372],{},"refused?",[2321,3374,3375,3388],{},[2307,3376,3377,3384],{},[2326,3378,3379,3380,3383],{},"the declarative top-level ",[950,3381,3382],{},"groupBy: 'field'"," (or an array), as the UNION form takes",[2326,3385,3386],{},[988,3387,2332],{},[2307,3389,3390,3400],{},[2326,3391,3392,3395,3396,3399],{},[950,3393,3394],{},".groupBy('field')"," inside a ",[950,3397,3398],{},"query:"," callback",[2326,3401,3402,3404],{},[988,3403,2525],{}," — silent",[3355,3406],{},"The guard runs when the ",[988,3409,3410],{},"source"," collection is registered, walks the views already recorded\nagainst it, and reads ",[950,3413,3414],{},"spec.groupBy"," and nothing else. A ",[950,3417,3418],{},".groupBy()"," call inside a query\ncallback lives in the plan the callback returns and never populates that field, so there is\nnothing for the guard to compare — ",[988,3421,3422,3423,3425],{},"declaring ",[950,3424,998],{}," does not change this."," The check also\nonly sees views already registered against that source, the same ordering the neighbouring\ntiers+crdt guard has.",[3355,3428],{},"So the residue is real and worth knowing: use ",[950,3431,3432],{},"mode: 'materialized'"," for anything you group by,\nand prefer the declarative ",[950,3435,952],{}," when you want the guard to be able to see it.",[985,3438,3439,3444,3445,3447,3448,3450,3451,3453],{},[988,3440,3441,3443],{},[950,3442,998],{}," is required for aggregates."," The dependency analyzer can extract source collections\nfrom a plain ",[950,3446,1539],{}," automatically, but not through a ",[950,3449,1543],{}," chain — declare\n",[950,3452,998],{}," explicitly or the analyzer won't know what to watch.",[985,3455,3456,3461,3462,3464,3465,3467,3468,3470,3471,976],{},[988,3457,3458,3459],{},"UNION mode ignores ",[950,3460,998],{}," for its own arms (dependencies come from\n",[950,3463,2416],{},"), but a per-arm ",[950,3466,994],{}," resolves a right-side collection the union\ndependency set doesn't include — that collection must still be listed in ",[950,3469,998],{}," or\nregistration throws ",[950,3472,2298],{},[985,3474,3475,3480,3481,3483,3484,3486],{},[988,3476,3477,3479],{},[950,3478,2718],{}," is not supported on UNION strategies"," — UNION mode doesn't build a ",[950,3482,1539],{},"\nchain, so ",[950,3485,3095],{}," has nothing to call into.",[985,3488,3489,3494,3495,3497,3498,3500,3501,3503,3504,3506,3507,3509,3510,3512,3513,976],{},[988,3490,3491,3493],{},[950,3492,1002],{}," is UNION-only"," and requires ",[950,3496,1006],{}," — the query form has no ",[950,3499,1006],{},"\nfield of its own (its ",[950,3502,1543],{}," chain runs inside ",[950,3505,2406],{},"), so ",[950,3508,1002],{},"\nwithout ",[950,3511,1006],{}," throws ",[950,3514,2298],{},[985,3516,3517,3524,3525,3527,3528,3530,3531,3512,3533,976],{},[988,3518,3519,2467,3521,3523],{},[950,3520,2514],{},[950,3522,2491],{}," work on both query-form and UNION views"," — either resolves\n",[950,3526,2497],{}," group-key fields to a stable string before bucketing. ",[950,3529,2514],{}," without\n",[950,3532,2491],{},[950,3534,2298],{},[985,3536,3537,3540,3541,3544,3545,3548,3549,3552,3553,3556,3557,3512,3560,976],{},[988,3538,3539],{},"Same-collection views need a partition filter."," A view whose output collection equals one of\nits sources is only allowed when ",[950,3542,3543],{},"output.partition"," provably excludes the source filter (",[950,3546,3547],{},"==","\nagainst a different value, ",[950,3550,3551],{},"!="," against the value, or an ",[950,3554,3555],{},"in"," list that doesn't contain it).\nOtherwise it's a cycle and ",[950,3558,3559],{},"vault.openVault",[950,3561,3562],{},"MaterializedViewCycleError",[985,3564,3565,3575],{},[988,3566,3567,3570,3571,3574],{},[950,3568,3569],{},"onEmpty: 'delete'"," bypasses ",[950,3572,3573],{},"onDelete"," guards."," Tombstoning a row that dropped out of the\nresult set goes through the same system-internal delete path as derivations, so a guard you\nregistered for human writes doesn't block housekeeping.",[985,3577,3578,3581,3582,3584,3585,976],{},[988,3579,3580],{},"Lazy staleness is in-memory only."," A vault close-and-reopen loses pending stale bits; rows\nwith a matching ",[950,3583,3078],{}," are treated as fresh until the next source write or explicit\n",[950,3586,2238],{},[941,3588,3590],{"id":3589},"see-also","See also",[982,3592,3593,3599,3605,3617,3630,3638,3648],{},[985,3594,3595,3598],{},[955,3596,665],{"href":3597},".\u002Fderivations"," — the row-level sibling: projects one source record into typed\noutputs, instead of materializing a whole query",[985,3600,3601,3604],{},[955,3602,768],{"href":3603},".\u002Foverlay-views"," — lets an operator override specific rows of a materialized\nview's output without losing the underlying computation",[985,3606,3607,3610,3611,3613,3614,3616],{},[955,3608,1006],{"href":3609},".\u002Freduce"," — the ",[950,3612,952],{}," + reducer machinery a query-form view's ",[950,3615,1276],{},"\nbuilds 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