Bump pg from 1.6.3 to 1.7.0 - #36

Sourced from pg's changelog.

v1.7.0 [2026-10-02] Lars Kanis lars@greiz-reinsdorf.de

Added:

• Add PG::Connection#embed_params and keyword :typename for its parameter casting. #726 This allows to generate SQL strings with embedded parameters for easier debugging.
• Add PG::Connection#full_protocol_version which is new in PostgreSQL-18 #695
• Add PG::Result#each_tuple #675
• Add PG::TypeMap#query_param_encoders to retrieve encoders. #726
• Deduplicate result field name strings for better performance. #750

Removed:

• Remove compatibility to ruby < 3.1 and drops support of ruby-2.7 and ruby-3.0. #749
• Remove GLV unlocking at all functions which process data modifiable in a second thread. #721 This avoids possible premature garbage collection of query parameters and possible VM crash due to concurrent data manipulation.
• Remove :static_symbol result field names. #691
• Remove enforced rpath addition when no rpath is configured in rbconfig. #699

Fixes:

• Limit memory allocation on invalid input into PG::BinaryDecoder::Array. #743
• Free COPY buffers when decoders raise to avoid possible memory leak in get_copy_data. #742
• Prevent SQL injection in set_client_encoding. #741
• Add GC_GUARD to temporary ruby objects for conninfo string to avoid it's GC'ed prematurely. #739
• Remove option "quirks_mode" from JSON en/decoder to fix compat with json-3.0 gem. #737
• Respect calendar type of Ruby and PostgreSQL. #725
• Fix broken set_notice_(receiver|processor) callback after GC.compact. #734
• Disable DNS resolution in ruby when a service file is used, so that the priority of parameters is equal to libpq. #635
• Use RARRAY_LENINT to avoid possible overflow. #728
• Fix possible integer overflow at PG::BinaryEncoder::CopyRow and PG::TextEncoder::CopyRow. #714, #715
• Avoid possible integer overflow in query parameter encoding. #719
• Ensure conninfo is a valid C string before closing the connection to avoid a double free of PGconn. #709
• Raise on a too large input string to PG::TextEncoder::Bytea. #717
• Check PG::BinaryEncoder::CopyRow array input size instead of producing an invalid output.
• Remove accidentally copied "static" keyword from Copy and Record encoder. #711
• Avoid possibility to replace typemap while being used in Copy and Record encoders and decoders. #707
• Add GC_GUARD's for encoding converted strings sent to the server. #705
• Fix incomplete transaction commit when thread is shutdown ungracefully. #704
• Assign VALUE after registration per rb_gc_register_address() #703
• Update dependencies for binary gems to PostgreSQL-18.6, OpenSSL-3.6.5, krb5-1.22.2 #752

• fcf40c5 Add new gem signing certificate
• d41e07a Merge pull request #753 from larskanis/rm-pgsql-10
• 8e1ee8f Remove some conditions for PostgreSQL-10
• 050c56d Fix typo in CHANGELOG and add version note
• 2c4934e Bump VERSION to 1.7.0
• f644ba2 Update release notes once more
• b16542d Merge pull request #752 from larskanis/upd-binaries
• 66b27c6 Update dependencies for binary gems to
• 6a07394 Add CHANGELOG entry for pg-1.7.0
• 5390356 Merge pull request #749 from larskanis/minruby-3.1
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