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Adjust virtual table's max ref table num. #34244

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Merged
dapan1121 merged 1 commit into from
Jan 14, 2026
+4 −6
Merged

Adjust virtual table's max ref table num. #34244

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4 changes: 1 addition & 3 deletions source/dnode/vnode/src/meta/metaTable.c
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Original file line number Diff line number Diff line change
Expand Up @@ -217,13 +217,11 @@ int32_t metaUpdateVtbMetaRsp(SMetaEntry *pEntry, char *tbName, SSchemaWrapper *p
}
}

if (taosHashGetSize(pColRefHash) > 1000) {
if (taosHashGetSize(pColRefHash) > 2000) {
code = TSDB_CODE_VTABLE_TOO_MANY_REFERENCE;
goto _return;
}



memcpy(pMetaRsp->pColRefs, pRef->pColRef, pRef->nCols * sizeof(SColRef));
tstrncpy(pMetaRsp->tbName, tbName, TSDB_TABLE_NAME_LEN);
if (tableType == TSDB_VIRTUAL_NORMAL_TABLE) {
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6 changes: 3 additions & 3 deletions test/cases/05-VirtualTables/test_vtable_max_column_num.py
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Expand Up @@ -22,7 +22,7 @@ def setup_class(cls):
tdSql.execute("alter local 'maxSQLLength' '4194304'")

sql = "insert into "
for i in range(32767):
for i in range(3000):
tdSql.execute(f"create table d_{i}(ts timestamp, double_col double)")
sql += f" d_{i} values(1696000000000, {i})"
sql += f" (1696000001000, {i+1})"
Expand Down Expand Up @@ -386,15 +386,15 @@ def test_virtual_table_error_case(self):
tdLog.info(f"test create virtual child tables.")
sql = "CREATE VTABLE vtb_virtual_child_exceed_ref ("
for i in range(32763):
sql += f"col_{i} from d_{i%1001}.double_col"
sql += f"col_{i} from d_{i%2001}.double_col"
if i != 32762:
sql += ", "
sql += ") USING vtb_virtual_stb_max_col_exceed_ref TAGS (1);"
tdSql.error(sql)

sql = "CREATE VTABLE `vtb_virtual_ntb_max_col_exceed_ref` (ts timestamp"
for i in range(32766):
sql += f", col_{i} double from d_{i%1001}.double_col"
sql += f", col_{i} double from d_{i%2001}.double_col"
sql += ")"
tdSql.error(sql)

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