Commit Graph

12 Commits

Author SHA1 Message Date
Rusty Russell
f87c7ed439 plugins/sql: fix foreign keys.
I noticed that our subtables were not being cleaned, despite being "ON
DELETE CASCADE".  This is because foreign keys were not enabled, but
then I got foreign key errors: rowid cannot be a foreign key anyway!

So create a real "rowid" column.  We want "ON DELETE CASCADE" for
nodes and channels (and other tables in future) where we update
partially.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-02-02 14:56:04 -06:00
Rusty Russell
0240c24936 plugins/sql: listsqlschemas command to retrieve schemas.
Good for detection of what fields are present.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
9a591277f5 plugins/sql: allow some simple functions.
And document them!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
14aac0769c doc: document the sql command.
In particular, we generate the schema part from the plugin itself.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Plugins: `sql` plugin command to perform server-side complex queries.
2023-01-30 15:15:41 -06:00
Rusty Russell
adb8de3e07 plugins/sql: print out part of man page referring to schemas.
We now add tables to the strmap as we allocate them, since we don't
want to call "finish_td" when we're merely invoked for the
documentation, and don't need a database.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
20654ebd49 plugins/sql: pay attention to deprecated in schema.
For now, we ignore every deprecated field, but put in the logic so
that future deprecations will work as expected.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
9b08c4f25a plugins/sql: refresh listnodes and listchannels by monitoring the gossip_store.
It's quite a lot of code, but these are the most expensive commands we
do so it's worth it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
aa3a1131aa plugins/sql: include the obvious indexes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
51ae7118f1 plugins/sql: make tables for non-object arrays.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
c230291141 plugins/sql: rework to parse schemas.
This requires us to rename "index" fields, rename fields if we have a
sub-object, and create sub-tables if we have an array, and handle the
fact that some listX commands don't contain array X (listsendpays
contains "payments").

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
260643157d plugins/sql: create struct column to encode column details.
Rather than two arrays "columns" (for names) and "fieldtypes" (for
types), use a struct.  This makes additions easier for successive
patches.

Also pull process_json_obj() out of the loop in list_done().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00
Rusty Russell
24d86a85c3 plugins/sql: initial commit of new plugin.
This is designed to allow you to perform complex server-side
queries.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-30 15:15:41 -06:00