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psql: Improve tab-completion for LOCK TABLE.

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This commit makes psql support the tab-completion for ONLY and
NOWAIT keywords of LOCK TABLE command.

Author: Koyu Tanigawa
Reviewed-by: Shinya Kato, Fujii Masao
Discussion: https://postgr.es/m/a322684daa36319e6ebc60b541000a3a@oss.nttdata.com
This commit is contained in:
Fujii Masao 2021-10-05 10:10:43 +09:00
parent e825943906
commit 0b0d277c35
1 changed files with 26 additions and 17 deletions
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43
src/bin/psql/tab-complete.c
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@ -3599,40 +3599,49 @@ psql_completion(const char *text, int start, int end)
COMPLETE_WITH("(");
/* LOCK */
/* Complete LOCK [TABLE] with a list of tables */
/* Complete LOCK [TABLE] [ONLY] with a list of tables */
else if (Matches("LOCK"))
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
" UNION SELECT 'TABLE'");
" UNION SELECT 'TABLE'"
" UNION SELECT 'ONLY'");
else if (Matches("LOCK", "TABLE"))
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, "");
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
" UNION SELECT 'ONLY'");
else if (Matches("LOCK", "TABLE", "ONLY") || Matches("LOCK", "ONLY"))
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
/* For the following, handle the case of a single table only for now */
/* Complete LOCK [TABLE] <table> with "IN" */
else if (Matches("LOCK", MatchAnyExcept("TABLE")) ||
Matches("LOCK", "TABLE", MatchAny))
COMPLETE_WITH("IN");
/* Complete LOCK [TABLE] [ONLY] <table> with IN or NOWAIT */
else if (Matches("LOCK", MatchAnyExcept("TABLE|ONLY")) ||
Matches("LOCK", "TABLE", MatchAnyExcept("ONLY")) ||
Matches("LOCK", "ONLY", MatchAny) ||
Matches("LOCK", "TABLE", "ONLY", MatchAny))
COMPLETE_WITH("IN", "NOWAIT");
/* Complete LOCK [TABLE] <table> IN with a lock mode */
else if (Matches("LOCK", MatchAny, "IN") ||
Matches("LOCK", "TABLE", MatchAny, "IN"))
/* Complete LOCK [TABLE] [ONLY] <table> IN with a lock mode */
else if (HeadMatches("LOCK") && TailMatches("IN"))
COMPLETE_WITH("ACCESS SHARE MODE",
"ROW SHARE MODE", "ROW EXCLUSIVE MODE",
"SHARE UPDATE EXCLUSIVE MODE", "SHARE MODE",
"SHARE ROW EXCLUSIVE MODE",
"EXCLUSIVE MODE", "ACCESS EXCLUSIVE MODE");
/* Complete LOCK [TABLE] <table> IN ACCESS|ROW with rest of lock mode */
else if (Matches("LOCK", MatchAny, "IN", "ACCESS|ROW") ||
Matches("LOCK", "TABLE", MatchAny, "IN", "ACCESS|ROW"))
/*
* Complete LOCK [TABLE][ONLY] <table> IN ACCESS|ROW with rest of lock
* mode
*/
else if (HeadMatches("LOCK") && TailMatches("IN", "ACCESS|ROW"))
COMPLETE_WITH("EXCLUSIVE MODE", "SHARE MODE");
/* Complete LOCK [TABLE] <table> IN SHARE with rest of lock mode */
else if (Matches("LOCK", MatchAny, "IN", "SHARE") ||
Matches("LOCK", "TABLE", MatchAny, "IN", "SHARE"))
/* Complete LOCK [TABLE] [ONLY] <table> IN SHARE with rest of lock mode */
else if (HeadMatches("LOCK") && TailMatches("IN", "SHARE"))
COMPLETE_WITH("MODE", "ROW EXCLUSIVE MODE",
"UPDATE EXCLUSIVE MODE");
/* Complete LOCK [TABLE] [ONLY] <table> [IN lockmode MODE] with "NOWAIT" */
else if (HeadMatches("LOCK") && TailMatches("MODE"))
COMPLETE_WITH("NOWAIT");
/* NOTIFY --- can be inside EXPLAIN, RULE, etc */
else if (TailMatches("NOTIFY"))
COMPLETE_WITH_QUERY("SELECT pg_catalog.quote_ident(channel) FROM pg_catalog.pg_listening_channels() AS channel WHERE substring(pg_catalog.quote_ident(channel),1,%d)='%s'");