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postgresql/src/backend/commands
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Heikki Linnakangas 3174d69fb9 Remove server and libpq support for old FE/BE protocol version 2. 
Protocol version 3 was introduced in PostgreSQL 7.4. There shouldn't be
many clients or servers left out there without version 3 support. But as
a courtesy, I kept just enough of the old protocol support that we can
still send the "unsupported protocol version" error in v2 format, so that
old clients can display the message properly. Likewise, libpq still
understands v2 ErrorResponse messages when establishing a connection.

The impetus to do this now is that I'm working on a patch to COPY
FROM, to always prefetch some data. We cannot do that safely with the
old protocol, because it requires parsing the input one byte at a time
to detect the end-of-copy marker.

Reviewed-by: Tom Lane, Alvaro Herrera, John Naylor
Discussion: https://www.postgresql.org/message-id/9ec25819-0a8a-d51a-17dc-4150bb3cca3b%40iki.fi
 		2021-03-04 10:45:55 +02:00
..
Makefile Split copy.c into four files. 2020-11-23 10:50:50 +02:00
aggregatecmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
alter.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
amcmds.c Fix some typos, grammar and style in docs and comments 2021-02-24 16:13:17 +09:00
analyze.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
async.c Remove server and libpq support for old FE/BE protocol version 2. 2021-03-04 10:45:55 +02:00
cluster.c Refactor option handling of CLUSTER, REINDEX and VACUUM 2021-01-18 14:03:10 +09:00
collationcmds.c Revert "pg_collation_actual_version() -> pg_collation_current_version()." 2021-02-26 15:29:27 +13:00
comment.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
constraint.c Pass down "logically unchanged index" hint. 2021-01-13 08:11:00 -08:00
conversioncmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
copy.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
copyfrom.c Remove server and libpq support for old FE/BE protocol version 2. 2021-03-04 10:45:55 +02:00
copyfromparse.c Remove server and libpq support for old FE/BE protocol version 2. 2021-03-04 10:45:55 +02:00
copyto.c Remove server and libpq support for old FE/BE protocol version 2. 2021-03-04 10:45:55 +02:00
createas.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
dbcommands.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
define.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
discard.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
dropcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
event_trigger.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
explain.c Add TID Range Scans to support efficient scanning ranges of TIDs 2021-02-27 22:59:36 +13:00
extension.c Add mbverifystr() functions specific to each encoding. 2021-01-28 14:40:07 +02:00
foreigncmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
functioncmds.c Re-implement pl/pgsql's expression and assignment parsing. 2021-01-04 11:52:00 -05:00
indexcmds.c Use pgstat_progress_update_multi_param() where possible 2021-02-22 14:21:40 +09:00
lockcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
matview.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
opclasscmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
operatorcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
policy.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
portalcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
prepare.c Improve performance of repeated CALLs within plpgsql procedures. 2021-01-25 22:28:29 -05:00
proclang.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
publicationcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
schemacmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
seclabel.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
sequence.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
statscmds.c Disallow CREATE STATISTICS on system catalogs 2021-01-15 23:31:22 +01:00
subscriptioncmds.c Use errmsg_internal for debug messages 2021-02-17 11:33:25 +01:00
tablecmds.c Simplify code to switch pg_class.relrowsecurity in tablecmds.c 2021-03-02 12:30:21 +09:00
tablespace.c Prevent drop of tablespaces used by partitioned relations 2021-01-14 15:32:14 -03:00
trigger.c Fix use-after-free bug with AfterTriggersTableData.storeslot 2021-02-27 18:09:15 -03:00
tsearchcmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
typecmds.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
user.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
vacuum.c ReadNewTransactionId() -> ReadNextTransactionId(). 2021-02-15 13:17:02 +13:00
variable.c Update copyright for 2021 2021-01-02 13:06:25 -05:00
view.c Update copyright for 2021 2021-01-02 13:06:25 -05:00