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51ffeef93f
The argument to BufTagInit was called 'spcOid', and it was also setting a field called 'spcOid'. The field name would erroneously also be expanded with the macro arg. It happened to work so far, because all the users of the macro pass a variable called 'spcOid' for the 'spcOid' argument, but as soon as you try to pass anything else, it fails. And same story for 'dbOid' and 'relNumber'. Rename the arguments to avoid the name collision. Also while we're at it, add parens around the arguments in a few macros, to make them safer if you pass something non-trivial as the argument.
neon extension consists of several parts:
shared preload library neon.so
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implements storage manager API and network communications with remote page server.
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walproposer: implements broadcast protocol between postgres and WAL safekeepers.
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control plane connector: Captures updates to roles/databases using ProcessUtility_hook and sends them to the control ProcessUtility_hook.
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remote extension server: Request compute_ctl to download extension files.
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file_cache: Local file cache is used to temporary store relations pages in local file system for better performance.
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relsize_cache: Relation size cache for better neon performance.
SQL functions in neon--*.sql
Utility functions to expose neon specific information to user and metrics collection. This extension is created in all databases in the cluster by default.