Horton

Add header matching mode to COPY FROM

Peter Eisentraut <peter@eisentraut.org>

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Commit: 072132f04e55c1c3b0f1a582318da78de7334379
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2022-03-30T07:02:31Z
Releases: 15.0 
Add header matching mode to COPY FROM

COPY FROM supports the HEADER option to silently discard the header
line from a CSV or text file.  It is possible to load by mistake a
file that matches the expected format, for example, if two text
columns have been swapped, resulting in garbage in the database.

This adds a new option value HEADER MATCH that checks the column names
in the header line against the actual column names and errors out if
they do not match.

Author: Rémi Lapeyre <remi.lapeyre@lenstra.fr>
Reviewed-by: Daniel Verite <daniel@manitou-mail.org>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/CAF1-J-0PtCWMeLtswwGV2M70U26n4g33gpe1rcKQqe6wVQDrFA@mail.gmail.com

Files

PathChange+/−
contrib/file_fdw/expected/file_fdw.out modified +18 −1
contrib/file_fdw/sql/file_fdw.sql modified +9 −0
doc/src/sgml/ref/copy.sgml modified +6 −2
src/backend/commands/copy.c modified +59 −1
src/backend/commands/copyfromparse.c modified +50 −3
src/include/commands/copy.h modified +12 −1
src/test/regress/expected/copy.out modified +23 −0
src/test/regress/sql/copy.sql modified +33 −0

Documentation touched

Discussion