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Merge InnoDB-4.0.7. Support for ON UPDATE CASCADE sql_select.cc: Remove superfluous prints to .err log when a locking SELECT fails to a deadlock or a lock wait timeout
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@@ -2415,6 +2415,7 @@ row_sel_push_cache_row_for_mysql(
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row_prebuilt_t* prebuilt, /* in: prebuilt struct */
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rec_t* rec) /* in: record to push */
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{
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byte* buf;
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ulint i;
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ut_ad(prebuilt->n_fetch_cached < MYSQL_FETCH_CACHE_SIZE);
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@@ -2424,8 +2425,18 @@ row_sel_push_cache_row_for_mysql(
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/* Allocate memory for the fetch cache */
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for (i = 0; i < MYSQL_FETCH_CACHE_SIZE; i++) {
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prebuilt->fetch_cache[i] = mem_alloc(
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prebuilt->mysql_row_len);
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/* A user has reported memory corruption in these
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buffers in Linux. Put magic numbers there to help
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to track a possible bug. */
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buf = mem_alloc(prebuilt->mysql_row_len + 8);
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prebuilt->fetch_cache[i] = buf + 4;
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mach_write_to_4(buf, ROW_PREBUILT_FETCH_MAGIC_N);
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mach_write_to_4(buf + 4 + prebuilt->mysql_row_len,
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ROW_PREBUILT_FETCH_MAGIC_N);
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}
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}
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@@ -2437,7 +2448,7 @@ row_sel_push_cache_row_for_mysql(
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prebuilt->n_fetch_cached++;
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}
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/*************************************************************************
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Tries to do a shortcut to fetch a clustered index record with a unique key,
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using the hash index if possible (not always). We assume that the search
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