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Report progress of COPY commands

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This commit introduces a view pg_stat_progress_copy, reporting progress
of COPY commands.  This allows rough estimates how far a running COPY
progressed, with the caveat that the total number of bytes may not be
available in some cases (e.g. when the input comes from the client).

Author: Josef Šimánek
Reviewed-by: Fujii Masao, Bharath Rupireddy, Vignesh C, Matthias van de Meent
Discussion: https://postgr.es/m/CAFp7QwqMGEi4OyyaLEK9DR0+E+oK3UtA4bEjDVCa4bNkwUY2PQ@mail.gmail.com
Discussion: https://postgr.es/m/CAFp7Qwr6_FmRM6pCO0x_a0mymOfX_Gg+FEKet4XaTGSW=LitKQ@mail.gmail.com
This commit is contained in:
Tomas Vondra
2021-01-06 21:46:26 +01:00
parent ca8217c101
commit 8a4f618e7a
10 changed files with 176 additions and 5 deletions
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4
src/backend/commands/copyfromparse.c
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@ -20,11 +20,13 @@
#include "commands/copy.h"
#include "commands/copyfrom_internal.h"
#include "commands/progress.h"
#include "executor/executor.h"
#include "libpq/libpq.h"
#include "libpq/pqformat.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "pgstat.h"
#include "port/pg_bswap.h"
#include "utils/memutils.h"
#include "utils/rel.h"
@ -384,6 +386,8 @@ CopyLoadRawBuf(CopyFromState cstate)
cstate->raw_buf[nbytes] = '\0';
cstate->raw_buf_index = 0;
cstate->raw_buf_len = nbytes;
cstate->bytes_processed += nbytes;
pgstat_progress_update_param(PROGRESS_COPY_BYTES_PROCESSED, cstate->bytes_processed);
return (inbytes > 0);
}