diff options
Diffstat (limited to 'storage/innobase/rem/rem0rec.cc')
| -rw-r--r-- | storage/innobase/rem/rem0rec.cc | 254 |
1 files changed, 189 insertions, 65 deletions
diff --git a/storage/innobase/rem/rem0rec.cc b/storage/innobase/rem/rem0rec.cc index 5a864f122a3..d56eb59e0bb 100644 --- a/storage/innobase/rem/rem0rec.cc +++ b/storage/innobase/rem/rem0rec.cc @@ -168,7 +168,6 @@ rec_get_n_extern_new( { const byte* nulls; const byte* lens; - dict_field_t* field; ulint null_mask; ulint n_extern; ulint i; @@ -189,10 +188,13 @@ rec_get_n_extern_new( /* read the lengths of fields 0..n */ do { - ulint len; + const dict_field_t* field + = dict_index_get_nth_field(index, i); + const dict_col_t* col + = dict_field_get_col(field); + ulint len; - field = dict_index_get_nth_field(index, i); - if (!(dict_field_get_col(field)->prtype & DATA_NOT_NULL)) { + if (!(col->prtype & DATA_NOT_NULL)) { /* nullable field => read the null flag */ if (UNIV_UNLIKELY(!(byte) null_mask)) { @@ -210,8 +212,6 @@ rec_get_n_extern_new( if (UNIV_UNLIKELY(!field->fixed_len)) { /* Variable-length field: read the length */ - const dict_col_t* col - = dict_field_get_col(field); len = *lens--; /* If the maximum length of the field is up to 255 bytes, the actual length is always @@ -240,16 +240,15 @@ rec_get_n_extern_new( Determine the offset to each field in a leaf-page record in ROW_FORMAT=COMPACT. This is a special case of rec_init_offsets() and rec_get_offsets_func(). */ -UNIV_INTERN +UNIV_INLINE __attribute__((nonnull)) void rec_init_offsets_comp_ordinary( /*===========================*/ const rec_t* rec, /*!< in: physical record in ROW_FORMAT=COMPACT */ - ulint extra, /*!< in: number of bytes to reserve - between the record header and - the data payload - (usually REC_N_NEW_EXTRA_BYTES) */ + ibool temp, /*!< in: whether to use the + format for temporary files in + index creation */ const dict_index_t* index, /*!< in: record descriptor */ ulint* offsets)/*!< in/out: array of offsets; in: n=rec_offs_n_fields(offsets) */ @@ -257,27 +256,38 @@ rec_init_offsets_comp_ordinary( ulint i = 0; ulint offs = 0; ulint any_ext = 0; - const byte* nulls = rec - (extra + 1); + const byte* nulls = temp + ? rec - 1 + : rec - (1 + REC_N_NEW_EXTRA_BYTES); const byte* lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); - dict_field_t* field; ulint null_mask = 1; #ifdef UNIV_DEBUG - /* We cannot invoke rec_offs_make_valid() here, because it can hold - that extra != REC_N_NEW_EXTRA_BYTES. Similarly, rec_offs_validate() - will fail in that case, because it invokes rec_get_status(). */ + /* We cannot invoke rec_offs_make_valid() here if temp=TRUE. + Similarly, rec_offs_validate() will fail in that case, because + it invokes rec_get_status(). */ offsets[2] = (ulint) rec; offsets[3] = (ulint) index; #endif /* UNIV_DEBUG */ + ut_ad(temp || dict_table_is_comp(index->table)); + + if (temp && dict_table_is_comp(index->table)) { + /* No need to do adjust fixed_len=0. We only need to + adjust it for ROW_FORMAT=REDUNDANT. */ + temp = FALSE; + } + /* read the lengths of fields 0..n */ do { - ulint len; + const dict_field_t* field + = dict_index_get_nth_field(index, i); + const dict_col_t* col + = dict_field_get_col(field); + ulint len; - field = dict_index_get_nth_field(index, i); - if (!(dict_field_get_col(field)->prtype - & DATA_NOT_NULL)) { + if (!(col->prtype & DATA_NOT_NULL)) { /* nullable field => read the null flag */ if (UNIV_UNLIKELY(!(byte) null_mask)) { @@ -297,10 +307,9 @@ rec_init_offsets_comp_ordinary( null_mask <<= 1; } - if (UNIV_UNLIKELY(!field->fixed_len)) { + if (!field->fixed_len + || (temp && !dict_col_get_fixed_size(col, temp))) { /* Variable-length field: read the length */ - const dict_col_t* col - = dict_field_get_col(field); len = *lens--; /* If the maximum length of the field is up to 255 bytes, the actual length is always @@ -394,9 +403,8 @@ rec_init_offsets( = dict_index_get_n_unique_in_tree(index); break; case REC_STATUS_ORDINARY: - rec_init_offsets_comp_ordinary(rec, - REC_N_NEW_EXTRA_BYTES, - index, offsets); + rec_init_offsets_comp_ordinary( + rec, FALSE, index, offsets); return; } @@ -774,17 +782,19 @@ rec_get_nth_field_offs_old( /**********************************************************//** Determines the size of a data tuple prefix in ROW_FORMAT=COMPACT. @return total size */ -UNIV_INTERN +UNIV_INLINE __attribute__((warn_unused_result, nonnull(1,2))) ulint -rec_get_converted_size_comp_prefix( -/*===============================*/ +rec_get_converted_size_comp_prefix_low( +/*===================================*/ const dict_index_t* index, /*!< in: record descriptor; dict_table_is_comp() is assumed to hold, even if it does not */ const dfield_t* fields, /*!< in: array of data fields */ ulint n_fields,/*!< in: number of data fields */ - ulint* extra) /*!< out: extra size */ + ulint* extra, /*!< out: extra size */ + ibool temp) /*!< in: whether this is a + temporary file record */ { ulint extra_size; ulint data_size; @@ -793,15 +803,25 @@ rec_get_converted_size_comp_prefix( ut_ad(fields); ut_ad(n_fields > 0); ut_ad(n_fields <= dict_index_get_n_fields(index)); + ut_ad(!temp || extra); - extra_size = REC_N_NEW_EXTRA_BYTES + extra_size = temp + ? UT_BITS_IN_BYTES(index->n_nullable) + : REC_N_NEW_EXTRA_BYTES + UT_BITS_IN_BYTES(index->n_nullable); data_size = 0; + if (temp && dict_table_is_comp(index->table)) { + /* No need to do adjust fixed_len=0. We only need to + adjust it for ROW_FORMAT=REDUNDANT. */ + temp = FALSE; + } + /* read the lengths of fields 0..n */ for (i = 0; i < n_fields; i++) { const dict_field_t* field; ulint len; + ulint fixed_len; const dict_col_t* col; field = dict_index_get_nth_field(index, i); @@ -820,6 +840,11 @@ rec_get_converted_size_comp_prefix( ut_ad(len <= col->len || col->mtype == DATA_BLOB || (col->len == 0 && col->mtype == DATA_VARCHAR)); + fixed_len = field->fixed_len; + if (temp && fixed_len + && !dict_col_get_fixed_size(col, temp)) { + fixed_len = 0; + } /* If the maximum length of a variable-length field is up to 255 bytes, the actual length is always stored in one byte. If the maximum length is more than 255 @@ -827,11 +852,20 @@ rec_get_converted_size_comp_prefix( 0..127. The length will be encoded in two bytes when it is 128 or more, or when the field is stored externally. */ - if (field->fixed_len) { - ut_ad(len == field->fixed_len); + if (fixed_len) { +#ifdef UNIV_DEBUG + ulint mbminlen = DATA_MBMINLEN(col->mbminmaxlen); + ulint mbmaxlen = DATA_MBMAXLEN(col->mbminmaxlen); + + ut_ad(len <= fixed_len); + + ut_ad(!mbmaxlen || len >= mbminlen + * (fixed_len / mbmaxlen)); + /* dict_index_add_col() should guarantee this */ ut_ad(!field->prefix_len - || field->fixed_len == field->prefix_len); + || fixed_len == field->prefix_len); +#endif /* UNIV_DEBUG */ } else if (dfield_is_ext(&fields[i])) { ut_ad(col->len >= 256 || col->mtype == DATA_BLOB); extra_size += 2; @@ -848,7 +882,7 @@ rec_get_converted_size_comp_prefix( data_size += len; } - if (UNIV_LIKELY_NULL(extra)) { + if (extra) { *extra = extra_size; } @@ -856,6 +890,23 @@ rec_get_converted_size_comp_prefix( } /**********************************************************//** +Determines the size of a data tuple prefix in ROW_FORMAT=COMPACT. +@return total size */ +UNIV_INTERN +ulint +rec_get_converted_size_comp_prefix( +/*===============================*/ + const dict_index_t* index, /*!< in: record descriptor */ + const dfield_t* fields, /*!< in: array of data fields */ + ulint n_fields,/*!< in: number of data fields */ + ulint* extra) /*!< out: extra size */ +{ + ut_ad(dict_table_is_comp(index->table)); + return(rec_get_converted_size_comp_prefix_low( + index, fields, n_fields, extra, FALSE)); +} + +/**********************************************************//** Determines the size of a data tuple in ROW_FORMAT=COMPACT. @return total size */ UNIV_INTERN @@ -899,8 +950,8 @@ rec_get_converted_size_comp( return(ULINT_UNDEFINED); } - return(size + rec_get_converted_size_comp_prefix(index, fields, - n_fields, extra)); + return(size + rec_get_converted_size_comp_prefix_low( + index, fields, n_fields, extra, FALSE)); } /***********************************************************//** @@ -1077,19 +1128,18 @@ rec_convert_dtuple_to_rec_old( /*********************************************************//** Builds a ROW_FORMAT=COMPACT record out of a data tuple. */ -UNIV_INTERN +UNIV_INLINE __attribute__((nonnull)) void rec_convert_dtuple_to_rec_comp( /*===========================*/ rec_t* rec, /*!< in: origin of record */ - ulint extra, /*!< in: number of bytes to - reserve between the record - header and the data payload - (normally REC_N_NEW_EXTRA_BYTES) */ const dict_index_t* index, /*!< in: record descriptor */ - ulint status, /*!< in: status bits of the record */ const dfield_t* fields, /*!< in: array of data fields */ - ulint n_fields)/*!< in: number of data fields */ + ulint n_fields,/*!< in: number of data fields */ + ulint status, /*!< in: status bits of the record */ + ibool temp) /*!< in: whether to use the + format for temporary files in + index creation */ { const dfield_t* field; const dtype_t* type; @@ -1101,31 +1151,44 @@ rec_convert_dtuple_to_rec_comp( ulint n_node_ptr_field; ulint fixed_len; ulint null_mask = 1; - ut_ad(extra == 0 || dict_table_is_comp(index->table)); - ut_ad(extra == 0 || extra == REC_N_NEW_EXTRA_BYTES); + ut_ad(temp || dict_table_is_comp(index->table)); ut_ad(n_fields > 0); - switch (UNIV_EXPECT(status, REC_STATUS_ORDINARY)) { - case REC_STATUS_ORDINARY: + if (temp) { + ut_ad(status == REC_STATUS_ORDINARY); ut_ad(n_fields <= dict_index_get_n_fields(index)); n_node_ptr_field = ULINT_UNDEFINED; - break; - case REC_STATUS_NODE_PTR: - ut_ad(n_fields == dict_index_get_n_unique_in_tree(index) + 1); - n_node_ptr_field = n_fields - 1; - break; - case REC_STATUS_INFIMUM: - case REC_STATUS_SUPREMUM: - ut_ad(n_fields == 1); - n_node_ptr_field = ULINT_UNDEFINED; - break; - default: - ut_error; - return; + nulls = rec - 1; + if (dict_table_is_comp(index->table)) { + /* No need to do adjust fixed_len=0. We only + need to adjust it for ROW_FORMAT=REDUNDANT. */ + temp = FALSE; + } + } else { + nulls = rec - (REC_N_NEW_EXTRA_BYTES + 1); + + switch (UNIV_EXPECT(status, REC_STATUS_ORDINARY)) { + case REC_STATUS_ORDINARY: + ut_ad(n_fields <= dict_index_get_n_fields(index)); + n_node_ptr_field = ULINT_UNDEFINED; + break; + case REC_STATUS_NODE_PTR: + ut_ad(n_fields + == dict_index_get_n_unique_in_tree(index) + 1); + n_node_ptr_field = n_fields - 1; + break; + case REC_STATUS_INFIMUM: + case REC_STATUS_SUPREMUM: + ut_ad(n_fields == 1); + n_node_ptr_field = ULINT_UNDEFINED; + break; + default: + ut_error; + return; + } } end = rec; - nulls = rec - (extra + 1); lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); /* clear the SQL-null flags */ memset(lens + 1, 0, nulls - lens); @@ -1171,6 +1234,10 @@ rec_convert_dtuple_to_rec_comp( ifield = dict_index_get_nth_field(index, i); fixed_len = ifield->fixed_len; + if (temp && fixed_len + && !dict_col_get_fixed_size(ifield->col, temp)) { + fixed_len = 0; + } /* If the maximum length of a variable-length field is up to 255 bytes, the actual length is always stored in one byte. If the maximum length is more than 255 @@ -1178,8 +1245,17 @@ rec_convert_dtuple_to_rec_comp( 0..127. The length will be encoded in two bytes when it is 128 or more, or when the field is stored externally. */ if (fixed_len) { - ut_ad(len == fixed_len); +#ifdef UNIV_DEBUG + ulint mbminlen = DATA_MBMINLEN( + ifield->col->mbminmaxlen); + ulint mbmaxlen = DATA_MBMAXLEN( + ifield->col->mbminmaxlen); + + ut_ad(len <= fixed_len); + ut_ad(!mbmaxlen || len >= mbminlen + * (fixed_len / mbmaxlen)); ut_ad(!dfield_is_ext(field)); +#endif /* UNIV_DEBUG */ } else if (dfield_is_ext(field)) { ut_ad(ifield->col->len >= 256 || ifield->col->mtype == DATA_BLOB); @@ -1233,8 +1309,7 @@ rec_convert_dtuple_to_rec_new( rec = buf + extra_size; rec_convert_dtuple_to_rec_comp( - rec, REC_N_NEW_EXTRA_BYTES, index, status, - dtuple->fields, dtuple->n_fields); + rec, index, dtuple->fields, dtuple->n_fields, status, FALSE); /* Set the info bits of the record */ rec_set_info_and_status_bits(rec, dtuple_get_info_bits(dtuple)); @@ -1296,6 +1371,54 @@ rec_convert_dtuple_to_rec( return(rec); } +#ifndef UNIV_HOTBACKUP +/**********************************************************//** +Determines the size of a data tuple prefix in ROW_FORMAT=COMPACT. +@return total size */ +UNIV_INTERN +ulint +rec_get_converted_size_temp( +/*========================*/ + const dict_index_t* index, /*!< in: record descriptor */ + const dfield_t* fields, /*!< in: array of data fields */ + ulint n_fields,/*!< in: number of data fields */ + ulint* extra) /*!< out: extra size */ +{ + return(rec_get_converted_size_comp_prefix_low( + index, fields, n_fields, extra, TRUE)); +} + +/******************************************************//** +Determine the offset to each field in temporary file. +@see rec_convert_dtuple_to_temp() */ +UNIV_INTERN +void +rec_init_offsets_temp( +/*==================*/ + const rec_t* rec, /*!< in: temporary file record */ + const dict_index_t* index, /*!< in: record descriptor */ + ulint* offsets)/*!< in/out: array of offsets; + in: n=rec_offs_n_fields(offsets) */ +{ + rec_init_offsets_comp_ordinary(rec, TRUE, index, offsets); +} + +/*********************************************************//** +Builds a temporary file record out of a data tuple. +@see rec_init_offsets_temp() */ +UNIV_INTERN +void +rec_convert_dtuple_to_temp( +/*=======================*/ + rec_t* rec, /*!< out: record */ + const dict_index_t* index, /*!< in: record descriptor */ + const dfield_t* fields, /*!< in: array of data fields */ + ulint n_fields) /*!< in: number of fields */ +{ + rec_convert_dtuple_to_rec_comp(rec, index, fields, n_fields, + REC_STATUS_ORDINARY, TRUE); +} + /**************************************************************//** Copies the first n fields of a physical record to a data tuple. The fields are copied to the memory heap. */ @@ -1506,6 +1629,7 @@ rec_copy_prefix_to_buf( return(*buf + (rec - (lens + 1))); } +#endif /* UNIV_HOTBACKUP */ /***************************************************************//** Validates the consistency of an old-style physical record. |