From e66931a2f63958196dcf834fb4ef5f0294a9f7eb Mon Sep 17 00:00:00 2001 From: JaySon-Huang Date: Mon, 19 Sep 2022 18:55:23 +0800 Subject: [PATCH] Resolve conflicts Signed-off-by: JaySon-Huang --- dbms/src/Storages/Transaction/RowCodec.cpp | 44 ++++++++++--------- .../tests/gtest_region_block_reader.cpp | 3 -- 2 files changed, 24 insertions(+), 23 deletions(-) diff --git a/dbms/src/Storages/Transaction/RowCodec.cpp b/dbms/src/Storages/Transaction/RowCodec.cpp index 1fd724a234e..ea7a358339d 100644 --- a/dbms/src/Storages/Transaction/RowCodec.cpp +++ b/dbms/src/Storages/Transaction/RowCodec.cpp @@ -351,9 +351,10 @@ bool appendRowV2ToBlockImpl( decodeUInts::ColumnIDType>(cursor, raw_value, num_null_columns, null_column_ids); decodeUInts::ValueOffsetType>(cursor, raw_value, num_not_null_columns, value_offsets); size_t values_start_pos = cursor; - size_t id_not_null = 0, id_null = 0; + size_t idx_not_null = 0; + size_t idx_null = 0; // Merge ordered not null/null columns to keep order. - while (id_not_null < not_null_column_ids.size() || id_null < null_column_ids.size()) + while (idx_not_null < not_null_column_ids.size() || idx_null < null_column_ids.size()) { if (column_ids_iter == column_ids_iter_end) { @@ -362,30 +363,32 @@ bool appendRowV2ToBlockImpl( } bool is_null; - if (id_not_null < not_null_column_ids.size() && id_null < null_column_ids.size()) - is_null = not_null_column_ids[id_not_null] > null_column_ids[id_null]; + if (idx_not_null < not_null_column_ids.size() && idx_null < null_column_ids.size()) + is_null = not_null_column_ids[idx_not_null] > null_column_ids[idx_null]; else - is_null = id_null < null_column_ids.size(); + is_null = idx_null < null_column_ids.size(); -<<<<<<< HEAD - auto next_datum_column_id = is_null ? null_column_ids[id_null] : not_null_column_ids[id_not_null]; - if (column_ids_iter->first > next_datum_column_id) -======= auto next_datum_column_id = is_null ? null_column_ids[idx_null] : not_null_column_ids[idx_not_null]; const auto next_column_id = column_ids_iter->first; if (next_column_id > next_datum_column_id) ->>>>>>> aae88b120d (tests: Fix RegionBlockReaderTest helper functions (#5899)) { - // extra column + // The next column id to read is bigger than the column id of next datum in encoded row. + // It means this is the datum of extra column. May happen when reading after dropping + // a column. if (!force_decode) return false; + // Ignore the extra column and continue to parse other datum if (is_null) - id_null++; + idx_null++; else - id_not_null++; + idx_not_null++; } else if (next_column_id < next_datum_column_id) { + // The next column id to read is less than the column id of next datum in encoded row. + // It means this is the datum of missing column. May happen when reading after adding + // a column. + // Fill with default value and continue to read data for next column id. const auto & column_info = column_infos[column_ids_iter->second]; if (!addDefaultValueToColumnIfPossible(column_info, block, block_column_pos, force_decode)) return false; @@ -394,7 +397,7 @@ bool appendRowV2ToBlockImpl( } else { - // if pk_handle_id is a valid column id, then it means the table's pk_is_handle is true + // If pk_handle_id is a valid column id, then it means the table's pk_is_handle is true // we can just ignore the pk value encoded in value part if (unlikely(next_column_id == pk_handle_id)) { @@ -402,15 +405,16 @@ bool appendRowV2ToBlockImpl( block_column_pos++; if (is_null) { - id_null++; + idx_null++; } else { - id_not_null++; + idx_not_null++; } continue; } + // Parse the datum. auto * raw_column = const_cast((block.getByPosition(block_column_pos)).column.get()); const auto & column_info = column_infos[column_ids_iter->second]; if (is_null) @@ -429,15 +433,15 @@ bool appendRowV2ToBlockImpl( } // ColumnNullable::insertDefault just insert a null value raw_column->insertDefault(); - id_null++; + idx_null++; } else { - size_t start = id_not_null ? value_offsets[id_not_null - 1] : 0; - size_t length = value_offsets[id_not_null] - start; + size_t start = idx_not_null ? value_offsets[idx_not_null - 1] : 0; + size_t length = value_offsets[idx_not_null] - start; if (!raw_column->decodeTiDBRowV2Datum(values_start_pos + start, raw_value, length, force_decode)) return false; - id_not_null++; + idx_not_null++; } column_ids_iter++; block_column_pos++; diff --git a/dbms/src/Storages/Transaction/tests/gtest_region_block_reader.cpp b/dbms/src/Storages/Transaction/tests/gtest_region_block_reader.cpp index 2184d5f7fee..dd58f166dac 100644 --- a/dbms/src/Storages/Transaction/tests/gtest_region_block_reader.cpp +++ b/dbms/src/Storages/Transaction/tests/gtest_region_block_reader.cpp @@ -1,5 +1,3 @@ -<<<<<<< HEAD -======= // Copyright 2022 PingCAP, Ltd. // // Licensed under the Apache License, Version 2.0 (the "License"); @@ -15,7 +13,6 @@ // limitations under the License. #include ->>>>>>> aae88b120d (tests: Fix RegionBlockReaderTest helper functions (#5899)) #include #include #include