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authorTom Lane <tgl@sss.pgh.pa.us>2021-06-23 14:27:13 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2021-06-23 14:27:13 -0400
commit16492f5cc34663ab3148248ebfc987806a6a9fbe (patch)
tree15c67c8765f3247759cb8edfba5fb864e51eb106 /doc/src/sgml/ref/create_function.sgml
parent006a829b2d1427974a4d7ae58f1191be2d0ae705 (diff)
Doc: fix confusion about LEAKPROOF in syntax summaries.
The syntax summaries for CREATE FUNCTION and allied commands made it look like LEAKPROOF is an alternative to IMMUTABLE/STABLE/VOLATILE, when of course it is an orthogonal option. Improve that. Per gripe from aazamrafeeque0. Thanks to David Johnston for suggestions. Discussion: https://postgr.es/m/162444349581.694.5818572718530259025@wrigleys.postgresql.org
Diffstat (limited to 'doc/src/sgml/ref/create_function.sgml')
-rw-r--r--doc/src/sgml/ref/create_function.sgml7
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/src/sgml/ref/create_function.sgml b/doc/src/sgml/ref/create_function.sgml
index fbee235baa2..daed7f48a8f 100644
--- a/doc/src/sgml/ref/create_function.sgml
+++ b/doc/src/sgml/ref/create_function.sgml
@@ -28,9 +28,10 @@ CREATE [ OR REPLACE ] FUNCTION
{ LANGUAGE <replaceable class="parameter">lang_name</replaceable>
| TRANSFORM { FOR TYPE <replaceable class="parameter">type_name</replaceable> } [, ... ]
| WINDOW
- | IMMUTABLE | STABLE | VOLATILE | [ NOT ] LEAKPROOF
- | CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT
- | [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
+ | { IMMUTABLE | STABLE | VOLATILE }
+ | [ NOT ] LEAKPROOF
+ | { CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT }
+ | { [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER }
| PARALLEL { UNSAFE | RESTRICTED | SAFE }
| COST <replaceable class="parameter">execution_cost</replaceable>
| ROWS <replaceable class="parameter">result_rows</replaceable>