pgsql: tableam: Use in CREATE TABLE AS and CREATE MATERIALIZED VIEW.

tableam: Use in CREATE TABLE AS and CREATE MATERIALIZED VIEW.

Previously those directly performed a heap_insert(). Use
table_insert() instead. The input slot of those routines is not of
the target relation - we could fix that by copying if necessary, but
that'd not be beneficial for performance. As those codepaths don't
access any AM specific tuple fields (say xmin/xmax), there's no need
to use an AM specific slot.

Author: Andres Freund
Reviewed-By: Haribabu Kommi
Discussion: https://postgr.es/m/20180703070645.wchpu5muyto5n647@alap3.anarazel.de

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/919e48b943014b1d4ab5d83e48dbc9f8e87e7be4

Modified Files
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src/backend/commands/createas.c | 24 ++++++++++++------------
src/backend/commands/matview.c | 23 +++++++++++------------
2 files changed, 23 insertions(+), 24 deletions(-)