Commit Graph

8 Commits

Author SHA1 Message Date
Marios Trivyzas a8a2a83d45
SQL: Fix grammar for `*` in arithm expressions (#34176)
Previously, parsing an arithmetic expression with `*` and no spaces,
e.g.: `2*i` threw a parsing exception as the grammar rule for
tableIdentifier was clashing with the rule for arithmetic operator `*`.

This issue comes already in the lexer and the left part of the
expression (in our example `2*`) was recognised as a
TABLE_IDENTIFIER token.

The solution adopted is to allow the `*` wildcard in the table name
only if it's surrounded with double quotes, e.g.: `"my*index"`

Closes: #33957
2018-10-02 11:47:42 +03:00
Costin Leau a192785fc8 DOC: Add SQL section on client applications
Add setup instructions for a number of GUI SQL applications
2018-09-13 15:44:52 +03:00
Costin Leau 43f80fa82b DOCS: Fix anchor and example typos 2018-09-04 19:06:44 +03:00
Costin Leau 17c7f99343
SQL: Show/desc commands now support table ids (#33363)
Extend SHOW TABLES, DESCRIBE and SHOW COLUMNS to support table
identifiers not just SQL LIKE pattern.
This allows both Elasticsearch-style multi-index patterns and SQL LIKE.
To disambiguate between the two (as the " vs ' can be easy to miss),
the grammar now requires LIKE keyword as a prefix for all LIKE-like
patterns.

Also added some docs comparing the two types of patterns.

Fix #33294
2018-09-04 16:54:10 +03:00
Costin Leau 9ffb26ab02
SQL: Remove restriction for single column grouping (#31818)
For historical reasons SQL restricts GROUP BY to only one field.
This commit removes the restriction and improves the test suite with
multi group by tests.

Close #31793
2018-07-06 20:55:27 +03:00
Costin Leau 093ea037b4 [DOCS] Typos 2018-07-03 17:19:48 +03:00
Costin Leau de9e56aa01
DOC: Add examples to the SQL docs (#31633)
Significantly improve the example snippets in the documentation.
The examples are part of the test suite and checked nightly.
To help readability, the existing dataset was extended (test_emp renamed
to emp plus library).
Improve output of JDBC tests to be consistent with the CLI
Add lenient flag to JDBC asserts to allow type widening (a long is
equivalent to a integer as long as the value is the same).
2018-07-03 16:56:31 +03:00
Lisa Cawley 638b9fd88c
[DOCS] Move sql to docs (#31474) 2018-06-22 15:40:25 -07:00