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Add convenience functions pg_sleep_for and pg_sleep_until.

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Vik Fearing, reviewed by Pavel Stehule and myself
This commit is contained in:
Robert Haas
2014-01-30 15:45:14 -05:00
parent 043f6ff05d
commit 760c770ff6
5 changed files with 23 additions and 9 deletions
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2
src/include/catalog/catversion.h
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@@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201401291
#define CATALOG_VERSION_NO 201401301
#endif

4
src/include/catalog/pg_proc.h
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@@ -3034,6 +3034,10 @@ DATA(insert OID = 2625 ( pg_ls_dir PGNSP PGUID 12 1 1000 0 0 f f f f t t v 1 0
DESCR("list all files in a directory");
DATA(insert OID = 2626 ( pg_sleep PGNSP PGUID 12 1 0 0 0 f f f f t f v 1 0 2278 "701" _null_ _null_ _null_ _null_ pg_sleep _null_ _null_ _null_ ));
DESCR("sleep for the specified time in seconds");
DATA(insert OID = 3935 ( pg_sleep_for PGNSP PGUID 14 1 0 0 0 f f f f t f v 1 0 2278 "1186" _null_ _null_ _null_ _null_ "select pg_catalog.pg_sleep(extract(epoch from pg_catalog.now() operator(pg_catalog.+) $1) operator(pg_catalog.-) extract(epoch from pg_catalog.now()))" _null_ _null_ _null_ ));
DESCR("sleep for the specified interval");
DATA(insert OID = 3936 ( pg_sleep_until PGNSP PGUID 14 1 0 0 0 f f f f t f v 1 0 2278 "1184" _null_ _null_ _null_ _null_ "select pg_catalog.pg_sleep(extract(epoch from $1) operator(pg_catalog.-) extract(epoch from pg_catalog.now()))" _null_ _null_ _null_ ));
DESCR("sleep until the specified time");
DATA(insert OID = 2971 ( text PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 25 "16" _null_ _null_ _null_ _null_ booltext _null_ _null_ _null_ ));
DESCR("convert boolean to text");

6
src/test/regress/expected/stats.out
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@@ -18,9 +18,9 @@ SET enable_indexscan TO on;
SET enable_indexonlyscan TO off;
-- wait to let any prior tests finish dumping out stats;
-- else our messages might get lost due to contention
SELECT pg_sleep(2.0);
pg_sleep
----------
SELECT pg_sleep_for('2 seconds');
pg_sleep_for
--------------
(1 row)

2
src/test/regress/sql/stats.sql
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@@ -16,7 +16,7 @@ SET enable_indexonlyscan TO off;
-- wait to let any prior tests finish dumping out stats;
-- else our messages might get lost due to contention
SELECT pg_sleep(2.0);
SELECT pg_sleep_for('2 seconds');
-- save counters
CREATE TEMP TABLE prevstats AS