| 126 | } |
| 127 | |
| 128 | static Oid |
| 129 | GpFindTargetPartition(Relation parent, GpAlterPartitionId *partid, |
| 130 | bool missing_ok) |
| 131 | { |
| 132 | Oid target_relid = InvalidOid; |
| 133 | |
| 134 | switch (partid->idtype) |
| 135 | { |
| 136 | case AT_AP_IDDefault: |
| 137 | /* Find default partition */ |
| 138 | target_relid = |
| 139 | get_default_oid_from_partdesc(RelationGetPartitionDesc(parent, false)); |
| 140 | if (!OidIsValid(target_relid) && !missing_ok) |
| 141 | ereport(ERROR, |
| 142 | (errcode(ERRCODE_UNDEFINED_OBJECT), |
| 143 | errmsg("DEFAULT partition of relation \"%s\" does not exist", |
| 144 | RelationGetRelationName(parent)))); |
| 145 | break; |
| 146 | case AT_AP_IDName: |
| 147 | { |
| 148 | /* |
| 149 | * Find partition by name. |
| 150 | * After PG12 merge, users may use pg syntax to do the partition maintenance, |
| 151 | * like ALTER TABLE ... DETACH/ATTACH PARTITION. |
| 152 | * This may cause the partition table's name different from GPDB's partition |
| 153 | * table name pattern <parentname>_<level>_prt_<partition_name>. |
| 154 | * When this happens, it's not possible to find the target partition table based |
| 155 | * on the name specified by the user. |
| 156 | * |
| 157 | * And if user do use the GPDB's syntax, we still have cases that the partition |
| 158 | * table's namespace different from it's parent namespace. See issue: |
| 159 | * https://github.com/greenplum-db/gpdb/issues/9903. |
| 160 | * Users could always use PARTITION FOR or pg syntax instead. |
| 161 | */ |
| 162 | RangeVar *partrv; |
| 163 | char *schemaname; |
| 164 | char *partname; |
| 165 | Relation partRel; |
| 166 | char partsubstring[NAMEDATALEN]; |
| 167 | List *ancestors = get_partition_ancestors(RelationGetRelid(parent)); |
| 168 | int level = list_length(ancestors) + 1; |
| 169 | char levelStr[NAMEDATALEN]; |
| 170 | |
| 171 | snprintf(levelStr, NAMEDATALEN, "%d", level); |
| 172 | snprintf(partsubstring, NAMEDATALEN, "prt_%s", |
| 173 | strVal(partid->partiddef)); |
| 174 | |
| 175 | partname = makeObjectName(RelationGetRelationName(parent), |
| 176 | levelStr, partsubstring); |
| 177 | |
| 178 | schemaname = get_namespace_name(parent->rd_rel->relnamespace); |
| 179 | partrv = makeRangeVar(schemaname, partname, -1); |
| 180 | partRel = table_openrv_extended(partrv, AccessShareLock, missing_ok); |
| 181 | if (partRel) |
| 182 | { |
| 183 | if (partRel->rd_rel->relispartition) |
| 184 | { |
| 185 | bool found = false; |
no test coverage detected