Update istore for pg16 compatibility

[ridvankorkmaz]

@rapimo 's solution.

#ifndef SET_VARSIZE
/*

• pg >= 16 reorganized the toastable header files
• postgres/postgres@d952373
• to ensure cross version compatibility we do a bit of a hack here */ #include "varatt.h"
  #endif

[za-arthur]

Thank you. Can you add Postgres 16 into the tests?

istore/.github/workflows/main.yml

Line 14 in 8a43a60

pg: [15, 14, 13, 12, 11, 10]

[ridvankorkmaz]

Thanks @za-arthur for review and suggestion, I added 16 test but failed,
If you had any quick fix let me know, otherwise next week I have to investigate th reason.

[za-arthur]

Do you mean you couldn't add new version?

What is necessary to do is to add 16 here:

pg: [16, 15, 14, 13, 12, 11, 10] 

[za-arthur]

Here is the error:

src/bigistore.c:765:50: error: passing argument 1 of ‘PointerGetDatum’ makes pointer from integer without a cast [-Werror=int-conversion]

[ridvankorkmaz]

Thanks @za-arthur for review and suggestion, I added 16 test but failed, If you had any quick fix let me know, otherwise next week I have to investigate th reason.

Sorry @za-arthur, I confused with pg-base62, but I added 16 test to CI and this repo has failed with pg16 test, I will take care next week both.