From efb224a4392326fd6ae3eabdc170a246978d3f09 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Tue, 14 Jun 2011 22:53:02 +0300
Subject: [PATCH] Add comment that attributes.is_nullable was removed from SQL
standard
We don't have to remove the column if no one is bothered, but it's
useful to comment on it in case someone looks for it in newer
standards versions.
---
src/backend/catalog/information_schema.sql | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/backend/catalog/information_schema.sql b/src/backend/catalog/information_schema.sql
index 452a0ead44c..81407a3a5ee 100644
--- a/src/backend/catalog/information_schema.sql
+++ b/src/backend/catalog/information_schema.sql
@@ -274,7 +274,7 @@ CREATE VIEW attributes AS
CAST(pg_get_expr(ad.adbin, ad.adrelid) AS character_data) AS attribute_default,
CAST(CASE WHEN a.attnotnull OR (t.typtype = 'd' AND t.typnotnull) THEN 'NO' ELSE 'YES' END
AS yes_or_no)
- AS is_nullable,
+ AS is_nullable, -- This column was apparently removed between SQL:2003 and SQL:2008.
CAST(
CASE WHEN t.typelem <> 0 AND t.typlen = -1 THEN 'ARRAY'
--
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