The following bug has been logged on the website:
Bug reference: 12690
Logged by: Patrick
Email address: patrick@vanlaake.net
PostgreSQL version: 9.3.5
Operating system: Ubuntu server 12.04
Description:
A recent question on StackOverflow was answered with a PL/PgSQL function
that includes a dynamic statement built from a row-typed record variable
(http://stackoverflow.com/questions/28164457/how-to-use-pl-pgsql-to-transform-an-original-table-to-desired-two-tables-in-post/28166069#28166069).
When running the function, the statement:
EXECUTE 'SELECT th.' || quote_ident(period) INTO times;
generates the run-time error:
ERROR: missing FROM-clause entry for table "th"
LINE 1: SELECT th."1996-04"
^
QUERY: SELECT th."1996-04"
CONTEXT: PL/pgSQL function normalize_things_happened() line 22 at EXECUTE
statement
********** Error **********
ERROR: missing FROM-clause entry for table "th"
SQL state: 42P01
Context: PL/pgSQL function normalize_things_happened() line 22 at EXECUTE
statement
where the local variable th is a row-typed record, period is a string
representing a column name and times is an integer.
When converting the statement to the non-dynamic corresponding version
SELECT th."1996-04" INTO times; the statement executes without an error.
In this specific context the parser seems to not support or disallow the use
of a record variable. Is this a bug ?
