pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- mas

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: Some stylistic improvements in toast_save_datum()

Some stylistic improvements in toast_save_datum() Move some variables to a smaller scope. Initialize chunk_data before storing a pointer to it; this avoids compiler warnings on clang-21, or respectively us having to work around it by initializing it to zero before the variable is used (as was don

pgsql: Hide duplicate names from extension views

Hide duplicate names from extension views If extensions of equal names were installed in different directories in the path, the views pg_available_extensions and pg_available_extension_versions would show all of them, even though only the first one was actually reachable by CREATE EXTENSION. To f

pgsql: Hide duplicate names from extension views

Hide duplicate names from extension views If extensions of equal names were installed in different directories in the path, the views pg_available_extensions and pg_available_extension_versions would show all of them, even though only the first one was actually reachable by CREATE EXTENSION. To f

pgsql: Eliminate duplicative hashtempcxt in nodeSubplan.c.

Eliminate duplicative hashtempcxt in nodeSubplan.c. Instead of building a separate memory context that's used just for running hash functions, make the hash functions run in the per-tuple context of the node's innerecontext. This saves a little space at runtime, and it avoids needing to reset two