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Routine usage information schema tables

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Several information schema views track dependencies between
functions/procedures and objects used by them.  These had not been
implemented so far because PostgreSQL doesn't track objects used in a
function body.  However, formally, these also show dependencies used
in parameter default expressions, which PostgreSQL does support and
track.  So for the sake of completeness, we might as well add these.
If dependency tracking for function bodies is ever implemented, these
views will automatically work correctly.

Reviewed-by: Erik Rijkers <er@xs4all.nl>
Discussion: https://www.postgresql.org/message-id/flat/ac80fc74-e387-8950-9a31-2560778fc1e3%40enterprisedb.com
This commit is contained in:
Peter Eisentraut
2021-02-17 17:53:18 +01:00
parent a29f30780f
commit f40c6969d0
6 changed files with 603 additions and 6 deletions
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src/backend/catalog/sql_features.txt
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@@ -243,7 +243,7 @@ F312 MERGE statement NO consider INSERT ... ON CONFLICT DO UPDATE
F313 Enhanced MERGE statement NO
F314 MERGE statement with DELETE branch NO
F321 User authorization YES
F341 Usage tables NO no ROUTINE_*_USAGE tables
F341 Usage tables YES
F361 Subprogram support YES
F381 Extended schema manipulation YES
F381 Extended schema manipulation 01 ALTER TABLE statement: ALTER COLUMN clause YES