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Add support for REFRESH MATERIALIZED VIEW CONCURRENTLY.

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This allows reads to continue without any blocking while a REFRESH
runs.  The new data appears atomically as part of transaction
commit.

Review questioned the Assert that a matview was not a system
relation.  This will be addressed separately.

Reviewed by Hitoshi Harada, Robert Haas, Andres Freund.
Merged after review with security patch f3ab5d4.
This commit is contained in:
Kevin Grittner
2013-07-16 12:55:44 -05:00
parent 7f7485a0cd
commit cc1965a99b
16 changed files with 644 additions and 57 deletions
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17
src/bin/psql/tab-complete.c
View File

@ -2871,11 +2871,22 @@ psql_completion(char *text, int start, int end)
else if (pg_strcasecmp(prev3_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev2_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev_wd, "VIEW") == 0)
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews,
" UNION SELECT 'CONCURRENTLY'");
else if (pg_strcasecmp(prev4_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev3_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev2_wd, "VIEW") == 0 &&
pg_strcasecmp(prev_wd, "CONCURRENTLY") == 0)
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews, NULL);
else if (pg_strcasecmp(prev4_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev3_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev2_wd, "VIEW") == 0)
COMPLETE_WITH_CONST("WITH");
else if (pg_strcasecmp(prev5_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev4_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev3_wd, "VIEW") == 0 &&
pg_strcasecmp(prev2_wd, "CONCURRENTLY") == 0)
COMPLETE_WITH_CONST("WITH DATA");
else if (pg_strcasecmp(prev5_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev4_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev3_wd, "VIEW") == 0 &&
@ -2886,6 +2897,12 @@ psql_completion(char *text, int start, int end)
COMPLETE_WITH_LIST(list_WITH_DATA);
}
else if (pg_strcasecmp(prev6_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev5_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev4_wd, "VIEW") == 0 &&
pg_strcasecmp(prev3_wd, "CONCURRENTLY") == 0 &&
pg_strcasecmp(prev_wd, "WITH") == 0)
COMPLETE_WITH_CONST("DATA");
else if (pg_strcasecmp(prev6_wd, "REFRESH") == 0 &&
pg_strcasecmp(prev5_wd, "MATERIALIZED") == 0 &&
pg_strcasecmp(prev4_wd, "VIEW") == 0 &&