Costin Leau 9357c17288 SQL: Doc on syntax (identifiers in particular) (#38662)
Add section on syntax, identifiers and literals and on single vs double quotes.

(cherry picked from commit aafdb598082e451f36294bd174d0887a276d8c7f)
2019-02-15 15:24:33 +02:00

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[role="xpack"]
[testenv="basic"]
[[sql-syntax-show-tables]]
=== SHOW TABLES
.Synopsis
[source, sql]
----
SHOW TABLES [ table identifier<1> | [ LIKE pattern<2> ] ]?
----
<1> single table identifier or double quoted es multi index
<2> SQL LIKE pattern
See <<sql-index-patterns, index patterns>> for more information about
patterns.
.Description
List the tables available to the current user and their type.
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTables]
----
Match multiple indices by using {es} <<multi-index,multi index syntax>>
notation:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTablesEsMultiIndex]
----
One can also use the `LIKE` clause to restrict the list of names to the given pattern.
The pattern can be an exact match:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTablesLikeExact]
----
Multiple chars:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTablesLikeWildcard]
----
A single char:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTablesLikeOneChar]
----
Or a mixture of single and multiple chars:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showTablesLikeMixed]
----