pgsql: Doc: use uppercase keywords in SQLs

Doc: use uppercase keywords in SQLs

Use uppercase SQL keywords consistently throughout the documentation to
ease reading. Also add whitespace in a couple of places where it
improves readability.

Author: Erik Wienhold <ewie(at)ewie(dot)name>
Reviewed-by: David Rowley <dgrowleyml(at)gmail(dot)com>
Discussion: https://postgr.es/m/82eb512b-8ed2-46be-b311-54ffd26978c4%40ewie.name

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/49d43faa835f3c6817be9fc0b98bec0d661c2587

Modified Files
--------------
doc/src/sgml/advanced.sgml | 4 +-
doc/src/sgml/arch-dev.sgml | 2 +-
doc/src/sgml/bloom.sgml | 12 ++---
doc/src/sgml/charset.sgml | 4 +-
doc/src/sgml/config.sgml | 4 +-
doc/src/sgml/cube.sgml | 8 ++--
doc/src/sgml/datatype.sgml | 4 +-
doc/src/sgml/datetime.sgml | 6 +--
doc/src/sgml/dblink.sgml | 28 +++++------
doc/src/sgml/ddl.sgml | 28 +++++------
doc/src/sgml/dict-int.sgml | 2 +-
doc/src/sgml/dml.sgml | 2 +-
doc/src/sgml/ecpg.sgml | 4 +-
doc/src/sgml/event-trigger.sgml | 2 +-
doc/src/sgml/func/func-array.sgml | 2 +-
doc/src/sgml/func/func-binarystring.sgml | 10 ++--
doc/src/sgml/func/func-bitstring.sgml | 8 ++--
doc/src/sgml/func/func-datetime.sgml | 14 +++---
doc/src/sgml/func/func-formatting.sgml | 4 +-
doc/src/sgml/func/func-info.sgml | 4 +-
doc/src/sgml/func/func-json.sgml | 80 ++++++++++++++++----------------
doc/src/sgml/func/func-matching.sgml | 8 ++--
doc/src/sgml/func/func-srf.sgml | 4 +-
doc/src/sgml/func/func-string.sgml | 14 +++---
doc/src/sgml/func/func-textsearch.sgml | 2 +-
doc/src/sgml/func/func-xml.sgml | 20 ++++----
doc/src/sgml/hstore.sgml | 4 +-
doc/src/sgml/indices.sgml | 6 +--
doc/src/sgml/isn.sgml | 2 +-
doc/src/sgml/libpq.sgml | 4 +-
doc/src/sgml/logical-replication.sgml | 2 +-
doc/src/sgml/logicaldecoding.sgml | 8 ++--
doc/src/sgml/ltree.sgml | 2 +-
doc/src/sgml/maintenance.sgml | 4 +-
doc/src/sgml/monitoring.sgml | 4 +-
doc/src/sgml/pageinspect.sgml | 4 +-
doc/src/sgml/pgcrypto.sgml | 2 +-
doc/src/sgml/pgstattuple.sgml | 2 +-
doc/src/sgml/pgsurgery.sgml | 12 ++---
doc/src/sgml/planstats.sgml | 2 +-
doc/src/sgml/plperl.sgml | 8 ++--
doc/src/sgml/plpgsql.sgml | 20 ++++----
doc/src/sgml/plpython.sgml | 6 +--
doc/src/sgml/pltcl.sgml | 2 +-
doc/src/sgml/queries.sgml | 4 +-
doc/src/sgml/ref/alter_table.sgml | 2 +-
doc/src/sgml/ref/create_function.sgml | 6 +--
doc/src/sgml/ref/create_table.sgml | 12 ++---
doc/src/sgml/ref/pg_rewind.sgml | 8 ++--
doc/src/sgml/ref/psql-ref.sgml | 16 +++----
doc/src/sgml/ref/select.sgml | 2 +-
doc/src/sgml/rules.sgml | 2 +-
doc/src/sgml/seg.sgml | 6 +--
doc/src/sgml/sepgsql.sgml | 2 +-
doc/src/sgml/tablefunc.sgml | 44 +++++++++---------
doc/src/sgml/tcn.sgml | 22 ++++-----
doc/src/sgml/textsearch.sgml | 6 +--
doc/src/sgml/typeconv.sgml | 2 +-
doc/src/sgml/unaccent.sgml | 8 ++--
doc/src/sgml/xfunc.sgml | 2 +-
60 files changed, 259 insertions(+), 259 deletions(-)