Commit Graph

20 Commits

Author SHA1 Message Date
Alexei Sorokin
caac2cea44 [SCHEMA] Better DBMS information fetching
On PostgreSQL:
  - Parse defaults for strings and booleans properly.
  - Parse the "serial" definition type properly.
  - Get information on the "enum" definition type.
  - Re-work getting information about keys/indices.

On MariaDB:
  - Get information about lengths in indices.
  - Get foreign key information separately from the rest as they can have
    colliding names.
2021-07-16 19:44:38 +01:00
Alexei Sorokin
573cd7d450 [SCHEMA] Fix a few mistakes 2021-07-16 19:44:38 +01:00
Alexei Sorokin
bee3dea9c2 [DATABASE] Add explicit indices for all foreign keys
This adds a requirement for all definitions that have foreign keys to also
require indices for all source (local) attributes mentioned in foreign keys.

MariaDB/MySQL creates indices for source attributes automatically, so this
serves as a way to get rid of those automatic indices and create clean explicit
ones instead.

In PostgreSQL, most of the time, indices on the source are necessary to
decrease performance penalty of foreign keys (like in MariaDB), but they aren't
created automatically, so this serves to remove that difference between
PostgreSQL and MariaDB.
2021-07-16 19:44:38 +01:00
Alexei Sorokin
b1b1d2af93 [DATABASE] Update "modified" in Managed_DataObject instead of a DBMS trigger
Instead of relying on the MariaDB's ON UPDATE CURRENT_TIMESTAMP trigger update
"modified" attributes in Managed_DataObject. Every raw query that needs
adjusting is adjusted, as they won't update "modified" automatically anymore.

The main goal behind this change is to fix "modified" updates on PostgreSQL.
2021-07-16 19:44:37 +01:00
Alexei Sorokin
182f94cf6f [DATABASE][MariaDB] Fix index changes with foreign keys enabled 2021-07-16 19:44:37 +01:00
Alexei Sorokin
9ec1b667c0 [DATABASE][Schema_version] Change the hashing algorithm to SHA3-512 2021-07-16 19:44:37 +01:00
Alexei Sorokin
65b6a924bd [DATABASE] Make unprefixed schema.php a bit more DBMS-neutral 2021-07-16 19:44:37 +01:00
Alexei Sorokin
e902a9bdfc [DATABASE] Check SQL boolean values with "IS TRUE"
This way UNKNOWN (NULL) explicitly turns to FALSE when three-valued logic is
reduced to binary.
In pgsqlschema, however, use "IS FALSE" as boolean attributes in pg_index are
non-nullable, there is no outer join and there's no clear preference for NULL
reduction.

Over-complicated constructions in TagCloud queries have been simplified, which
should not affect their performance.

Additionally, in TagCloud's lib/subscriptionspeopleselftagcloudsection.php
a typing mistake in an equi-join of "profile_tag" and "profile_list" on
"tagger" was fixed.
That regression was introduced in f446db8e2a
2021-07-16 19:44:37 +01:00
Alexei Sorokin
26115482ef [SCHEMA] Improve timestamp storage
Avoid the use of deprecated MariaDB "zero dates" globally. If they're present
as attribute defaults somewhere, they will be replaced with NULL implicitly.
The existing "zero dates" in MariaDB storage will be left intact and this
should not present any issues.

The "timestamp" type in table definitions now corresponds to DATETIME in
MariaDB with "DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP", which
should be close enough to the original behaviour for compatibility purposes.
It is now the recommended type for "modified" attributes, because of the
update trigger on MariaDB. But there is no such trigger implemented on
PostgreSQL as of this moment.
2021-07-16 19:44:37 +01:00
Alexei Sorokin
eb993df072 [DATABASE] Fix MariaDB schema verification 2021-07-16 19:44:37 +01:00
Alexei Sorokin
9ac632ca2d [DATABASE] Start transactions with START TRANSACTION
"BEGIN" is non-standard and unnecessary.
2021-07-16 19:44:36 +01:00
tenma
d369e807fb [DATABASE] Fix deprecated call to implode() 2021-07-16 19:44:36 +01:00
Diogo Cordeiro
81711a18d9 [LIB_REFACTOR] Fix minor issues 2021-07-16 19:44:35 +01:00
Alexei Sorokin
cfc93bacbb [DATABASE][MariaDB] Properly account for foreign keys 2021-07-16 19:44:35 +01:00
Alexei Sorokin
16b5ddd230 [DATABASE] Re-introduce PostgreSQL support 2021-07-16 19:44:35 +01:00
Alexei Sorokin
0e0c375e65 [DATABASE] Re-introduce the enum type abstraction 2021-07-16 19:44:35 +01:00
Alexei Sorokin
3f17a0efea [DATABASE] Introduce a bool type in schema
PostgreSQL has a clear distinction between integers and booleans, so it makes
sense to draw a clear line.
2021-07-16 19:44:35 +01:00
Alexei Sorokin
d26aac77b3 [DATABASE] Always quote identifiers
The code used to operate under the assumption that MariaDB doesn't support
quoting identifiers. Not only is that not exactly true, but MariaDB has
reserved keywords that cannot be used as table or column names unquoted.
2021-07-16 19:44:35 +01:00
Miguel Dantas
ab3e8ce21d [LIB_REFACTOR] Fix requires 2021-07-16 19:44:34 +01:00
Miguel Dantas
2ab2e22a36 [LIB_REFACTOR] Moving files into separate semantic categories 2021-07-16 19:44:34 +01:00