From 6ddbcd4d6333bc96c21ca95d632d83f1e1459064 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Thu, 8 Feb 2024 16:03:39 +0900 Subject: [PATCH] Speedup COPY TO --- src/backend/commands/copyto.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/src/backend/commands/copyto.c b/src/backend/commands/copyto.c index bd4710a79b..c6b45cab53 100644 --- a/src/backend/commands/copyto.c +++ b/src/backend/commands/copyto.c @@ -612,13 +612,15 @@ BeginCopyTo(ParseState *pstate, cstate->file_encoding = cstate->opts.file_encoding; /* - * Set up encoding conversion info. Even if the file and server encodings - * are the same, we must apply pg_any_to_server() to validate data in - * multibyte encodings. + * Set up encoding conversion info, validating data if server and + * client encodings are not the same (see also pg_server_to_any). */ - cstate->need_transcoding = - (cstate->file_encoding != GetDatabaseEncoding() || - pg_database_encoding_max_length() > 1); + if (cstate->file_encoding == GetDatabaseEncoding() || + cstate->file_encoding == PG_SQL_ASCII) + cstate->need_transcoding = false; + else + cstate->need_transcoding = true; + /* See Multibyte encoding comment above */ cstate->encoding_embeds_ascii = PG_ENCODING_IS_CLIENT_ONLY(cstate->file_encoding); -- 2.43.0