MDEV-21138 Assertion `col->ord_part' or `f.col->ord_part' failed in row_build_index_entry_low

First part (row0mysql.cc) fixes ins_node_set_new_row() usage workflow
as it is designed to operate on empty row (see row_get_prebuilt_insert_row()
for example).

Second part (row0ins.cc) fixes duplicate key error in FTS_DOC_ID_INDEX
since history rows must not generate entries in that index. We detect
FTS_DOC_ID_INDEX by a number of attributes and skip it if the row is
historical.

Misc fixes:

row_build_index_entry_low() does not accept non-NULL tuple
for FTS index (subject assertion fails), assertion (index->type !=
DICT_FTS) adds code understanding.

Now as historical_row is copied in row_update_vers_insert() there is
no need to copy the row twice: ROW_COPY_POINTERS is used to build
historical_row initially.

dbug_print_rec() debug functions.

1 files changed, 39 insertions, 0 deletions

diff --git a/storage/innobase/ut/ut0ut.cc b/storage/innobase/ut/ut0ut.cc
index 6d2b84625f7..65a2c9356e2 100644
--- a/storage/innobase/ut/ut0ut.cc
+++ b/storage/innobase/ut/ut0ut.cc
@@ -38,6 +38,7 @@ Created 5/11/1994 Heikki Tuuri
 #include <string>
 #include "log.h"
 #include "my_cpu.h"
+#include "rem0rec.h"
 
 /**********************************************************//**
 Returns the number of milliseconds since some epoch.  The
@@ -627,4 +628,42 @@ fatal_or_error::~fatal_or_error()
 
 } // namespace ib
 
+#ifndef DBUG_OFF
+const char * dbug_print_rec(const rec_t* rec, const rec_offs* offsets)
+{
+	rec_printer r(rec, offsets);
+	return r.str().c_str();
+}
+
+const char * dbug_print_rec(const rec_t* rec, ulint info, const rec_offs* offsets)
+{
+	rec_printer r(rec, info, offsets);
+	return r.str().c_str();
+}
+
+const char * dbug_print_rec(const dtuple_t* tuple)
+{
+	rec_printer r(tuple);
+	return r.str().c_str();
+}
+
+const char * dbug_print_rec(const dfield_t* field, ulint n)
+{
+	rec_printer r(field, n);
+	return r.str().c_str();
+}
+
+const char * dbug_print_rec(const rec_t* rec, dict_index_t* index)
+{
+	rec_offs	offsets_[REC_OFFS_NORMAL_SIZE];
+	rec_offs*	offsets		= offsets_;
+	rec_offs_init(offsets_);
+	mem_heap_t*	tmp_heap	= NULL;
+	offsets = rec_get_offsets(rec, index, offsets, true,
+				  ULINT_UNDEFINED, &tmp_heap);
+	rec_printer r(rec, offsets);
+	return r.str().c_str();
+}
+#endif /* !DBUG_OFF */
+
 #endif /* !UNIV_INNOCHECKSUM */