Zend_Db_Adapter_Pdo_Pgsql is broken with Postgres 12

[Megatherium]

zf1/packages/zend-db/library/Zend/Db/Adapter/Pdo/Pgsql.php

Line 159 in 4306451

d.adsrc AS default_value,

adsrc has been considered 'historical' since PG8 and has finally been removed with PG12. The line can easily be replaced with pg_get_expr(d.adbin, d.adrelid) AS default_value, I have tested this down to PG9.6 but from reading the documentation this should work even with <8.0

Will this suffce?

[glensc]

If what you're saying, that the new proposed version works for PG < 8.0 and PG >= 8.0, I see no reason why not to make the proposed change.

[glensc]

Solved the same way in Shardj/zf1-future (#25):

• Pg12: Undefined column: 7 ERROR: column d.adsrc does not exist Shardj/zf1-future#28
• Replace d.adsrc that it's removed into postgresql 12 #28 Shardj/zf1-future#31

so perhaps just cherry-pick the change.

[glensc]

there: #29