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cpp/third_party/postgresql/include/pgsql/server/common/compression.h
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ihtiandr9 (note)
build Win. Supported only x64
25 авг 2025, 05:07
25 авг 2025, 05:07
ea9dcd2
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/*------------------------------------------------------------------------- * * compression.h * * Shared definitions for compression methods and specifications. * * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group * * IDENTIFICATION * src/common/compression.h *------------------------------------------------------------------------- */ #ifndef PG_COMPRESSION_H #define PG_COMPRESSION_H typedef enum pg_compress_algorithm { PG_COMPRESSION_NONE, PG_COMPRESSION_GZIP, PG_COMPRESSION_LZ4, PG_COMPRESSION_ZSTD } pg_compress_algorithm; #define PG_COMPRESSION_OPTION_WORKERS (1 << 0) typedef struct pg_compress_specification { pg_compress_algorithm algorithm; unsigned options; /* OR of PG_COMPRESSION_OPTION constants */ int level; int workers; char *parse_error; /* NULL if parsing was OK, else message */ } pg_compress_specification; extern bool parse_compress_algorithm(char *name, pg_compress_algorithm *algorithm); extern const char *get_compress_algorithm_name(pg_compress_algorithm algorithm); extern void parse_compress_specification(pg_compress_algorithm algorithm, char *specification, pg_compress_specification *result); extern char *validate_compress_specification(pg_compress_specification *); #endif