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Diffstat (limited to 'doc/src/sgml/parallel.sgml')
| -rw-r--r-- | doc/src/sgml/parallel.sgml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/src/sgml/parallel.sgml b/doc/src/sgml/parallel.sgml index f39c21a4550..cf4c1c9c2a9 100644 --- a/doc/src/sgml/parallel.sgml +++ b/doc/src/sgml/parallel.sgml @@ -229,6 +229,15 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%'; <listitem> <para> + A prepared statement is executed using a <literal>CREATE TABLE .. AS + EXECUTE ..</literal> statement. This construct converts what otherwise + would have been a read-only operation into a read-write operation, + making it ineligible for parallel query. + </para> + </listitem> + + <listitem> + <para> The transaction isolation level is serializable. This situation does not normally arise, because parallel query plans are not generated when the transaction isolation level is serializable. |