On 30.03.2021 19:56, Erik Rijkers wrote:
On 2021.03.27. 02:12 Nikita Glukhov <n.gluhov@postgrespro.ru> wrote:
Attached 47th version of the patches.
Hi,
Apply, build all fine. It also works quite well, and according to specification, as far as I can tell.
But today I ran into:
ERROR: function ExecEvalJson not in llvmjit_types.c
I think that it is caused by:
set enable_bitmapscan = off;
(I installed llvm a few days ago. llvm-3.9-dev on this debian stretch).
This is the test sql I concocted, which runs fine with enable_bitmapscan on (the default):
select jt1.*
from myjsonfile100k as t(js, id) , json_table( t.js , '$' columns ( "lastname" text path '$. "lastname" ' , "firstname" text path '$. "firstname" ' , "date" text path '$. "date" ' , "city" text path '$. "city" ' , "country" text path '$. "country" ' , "name 0(1)" text path '$. "array"[0] ' , "name 4(5)" text path '$. "array"[4] ' , "names" text[] path '$. "array" ' , "randfloat" float path '$. "random float" ' )
) as jt1
where js @> ('[ { "city": "Santiago de Cuba" } ]') and js[0]->>'firstname' = 'Gilda'
;
ERROR: function ExecEvalJson not in llvmjit_types.c
That statement only errors out if the table is large enough. I have no time now to make a sample table but if no-one understands the problem off-hand, I'll try to construct such a table later this week (the one I'm using is large, 1.5 GB).
Thank you for testing.
I think you can try to add 3 missing functions references to the end of
src/backend/jit/llvm/llvmjit_types.c:
void *referenced_functions[] = {
...
ExecEvalXmlExpr,
+ ExecEvalJsonConstructor,
+ ExecEvalIsJsonPredicate,
+ ExecEvalJson,
MakeExpandedObjectReadOnlyInternal,
... };
If this fixes problem, I will add this to the new version of the patches.
--
Nikita Glukhov
Postgres Professional: http://www.postgrespro.co
The Russian Postgres Company
