RESET Y N N REVOKE Y Details DDL REVOKE ROLE Y Y DDL ROLLBACK Y N N ROLLBACK PREPARED Y N N SAVEPOINT Y N N SECURITY LABEL Y Details DDL SELECT INTO Details Y DDL SET Y N N SET CONSTRAINTS Y N N SHOW Y N N START TRANSACTION Y N N TRUNCATE TABLE Y Details Details UNLISTEN ...
void BufTableDelete(BufferTag *tagPtr, uint32 hashcode) { BufferLookupEnt *result; result = (BufferLookupEnt *) hash_search_with_hash_value(SharedBufHash, (void *) tagPtr, hashcode, HASH_REMOVE, NULL); if (!result) /* shouldn't happen */ elog(ERROR, "shared buffer hash table corrupt...
(后者通常都是 SQL 声明的函数。)即使保留关键字在PostgreSQL 里都没有完全保留,而是可以用做字段标签(比如,SELECT 55 AS CHECK— 虽然CHECK是保留关键字。) 在Table C-1里用于PostgreSQL 的字段里, 我们把那些分析器明确知道,但是可以在大多数需要标识符的环境里用做标识符的关键字分类为"非保留"。 否则一些关...
Setting the replica identity of tables tofullincreases the volume of WAL written and the amount of data replicated on the wire for the table. On setting bdr.default_replica_identity to default When settingbdr.default_replica_identitytodefaultusingALTER SYSTEM, always quote the value, like this: ...
Insert/update/delete vs truncate/insert - Which is better for MySQL to SQL Server? inserting Data into Netezza Fastest way Inserting Identity column in an Table using SSIS Inserting into a table using SSIS Script Task Inserting NULL values from Excel to the Decimal Column in Database data Conve...
Ifbdr.default_replica_identityisDEFAULTand there is aUNIQUEconstraint on the table, it isn't automatically picked up asREPLICA IDENTITY. You need to set it explicitly when creating the table or after, as described above. Setting the replica identity of tables toFULLincreases the volume of WAL ...
bdr.reset_relation_stats bdr.reset_subscription_stats bdr.resynchronize_table_from_node bdr.seq_currval bdr.seq_lastval bdr.seq_nextval bdr.show_subscription_status bdr.show_workers bdr.show_writers bdr.sync_status_name Task manager functions ...
nodes in a BDR group, asking them to lock the table against writes, and we wait while all pending changes to that table are drained. Once all nodes are fully caught up, the originator of the DML lock is free to perform schema changes to the table and replicate them to the other ...
If bdr.default_replica_identity is DEFAULT and there is aUNIQUEconstraint on the table, it will not be automatically picked up asREPLICA IDENTITY. It needs to be set explicitly at the time of creating the table, or afterwards as described in the documentation above. ...