diff options
Diffstat (limited to 'src/backend/commands/explain.c')
| -rw-r--r-- | src/backend/commands/explain.c | 149 |
1 files changed, 95 insertions, 54 deletions
diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c index 31205fccdb..9c9dc9ed91 100644 --- a/src/backend/commands/explain.c +++ b/src/backend/commands/explain.c @@ -99,6 +99,10 @@ static void ExplainCloseGroup(const char *objtype, const char *labelname, bool labeled, ExplainState *es); static void ExplainDummyGroup(const char *objtype, const char *labelname, ExplainState *es); +#ifdef PGXC +static void ExplainExecNodes(ExecNodes *en, ExplainState *es); +static void ExplainRemoteQuery(RemoteQuery *plan, ExplainState *es); +#endif static void ExplainXMLTag(const char *tagname, int flags, ExplainState *es); static void ExplainJSONLineEnding(ExplainState *es); static void ExplainYAMLLineStarting(ExplainState *es); @@ -858,20 +862,8 @@ ExplainNode(PlanState *planstate, List *ancestors, break; #ifdef PGXC case T_RemoteQuery: - if (es->num_nodes) - { - ExecNodes *en = ((RemoteQuery *)plan)->exec_nodes; - int primary_node_count = en ? list_length(en->primarynodelist) : 0; - int node_count = en ? list_length(en->nodeList) : 0; - if (es->format == EXPLAIN_FORMAT_TEXT) - appendStringInfo(es->str, " (primary node count=%d, node count=%d)", - primary_node_count, node_count); - else - { - ExplainPropertyInteger("Primary node count", primary_node_count, es); - ExplainPropertyInteger("Node count", node_count, es); - } - } + /* Emit node execution list */ + ExplainExecNodes(((RemoteQuery *)plan)->exec_nodes, es); ExplainScanTarget((Scan *) plan, es); break; #endif @@ -1048,46 +1040,18 @@ ExplainNode(PlanState *planstate, List *ancestors, "Index Cond", planstate, ancestors, es); break; #ifdef PGXC - case T_RemoteQuery: + case T_ModifyTable: { - RemoteQuery *remote_query = (RemoteQuery *) plan; - /* add names of the nodes if they exist */ - if (remote_query->exec_nodes && es->nodes) - { - StringInfo node_names = makeStringInfo(); - ListCell *lcell; - char *sep; - int node_no; - if (remote_query->exec_nodes->primarynodelist) - { - sep = ""; - foreach(lcell, remote_query->exec_nodes->primarynodelist) - { - node_no = lfirst_int(lcell); - appendStringInfo(node_names, "%s%s", sep, - get_pgxc_nodename(PGXCNodeGetNodeOid(node_no, PGXC_NODE_DATANODE))); - sep = ", "; - } - ExplainPropertyText("Primary node/s", node_names->data, es); - } - if (remote_query->exec_nodes->nodeList) - { - resetStringInfo(node_names); - sep = ""; - foreach(lcell, remote_query->exec_nodes->nodeList) - { - node_no = lfirst_int(lcell); - appendStringInfo(node_names, "%s%s", sep, - get_pgxc_nodename(PGXCNodeGetNodeOid(node_no, PGXC_NODE_DATANODE))); - sep = ", "; - } - ExplainPropertyText("Node/s", node_names->data, es); - } - } + /* Remote query planning on DMLs */ + ModifyTable *mt = (ModifyTable *)plan; + ListCell *elt; + foreach(elt, mt->remote_plans) + ExplainRemoteQuery((RemoteQuery *) lfirst(elt), es); } - if (es->verbose) - ExplainPropertyText("Remote query", - ((RemoteQuery *)plan)->sql_statement, es); + break; + case T_RemoteQuery: + /* Remote query */ + ExplainRemoteQuery((RemoteQuery *)plan, es); show_scan_qual(plan->qual, "Coordinator quals", planstate, ancestors, es); break; #endif @@ -1637,8 +1601,7 @@ ExplainScanTarget(Scan *plan, ExplainState *es) { #ifdef PGXC if (plan->scanrelid <= 0 || - es->rtable == NULL || - plan->scanrelid > es->rtable->length) + list_length(es->rtable) == 0) return; #endif @@ -2210,6 +2173,84 @@ ExplainSeparatePlans(ExplainState *es) } } +#ifdef PGXC +/* + * Emit execution node list number. + */ +static void +ExplainExecNodes(ExecNodes *en, ExplainState *es) +{ + int primary_node_count = en ? list_length(en->primarynodelist) : 0; + int node_count = en ? list_length(en->nodeList) : 0; + + if (!es->num_nodes) + return; + + if (es->format == EXPLAIN_FORMAT_TEXT) + { + appendStringInfo(es->str, " (primary node count=%d, node count=%d)", + primary_node_count, node_count); + } + else + { + ExplainPropertyInteger("Primary node count", primary_node_count, es); + ExplainPropertyInteger("Node count", node_count, es); + } +} + +/* + * Emit remote query planning details + */ +static void +ExplainRemoteQuery(RemoteQuery *plan, ExplainState *es) +{ + /* Add names of the nodes if they exist */ + if (plan->exec_nodes && es->nodes) + { + StringInfo node_names = makeStringInfo(); + ListCell *lcell; + char *sep; + int node_no; + + /* Primary node(s) name(s) */ + if (plan->exec_nodes->primarynodelist) + { + sep = ""; + foreach(lcell, plan->exec_nodes->primarynodelist) + { + node_no = lfirst_int(lcell); + appendStringInfo(node_names, "%s%s", sep, + get_pgxc_nodename(PGXCNodeGetNodeOid(node_no, + PGXC_NODE_DATANODE))); + sep = ", "; + } + ExplainPropertyText("Primary node/s", node_names->data, es); + } + + /* Other node(s) name(s) */ + if (plan->exec_nodes->nodeList) + { + resetStringInfo(node_names); + sep = ""; + foreach(lcell, plan->exec_nodes->nodeList) + { + node_no = lfirst_int(lcell); + appendStringInfo(node_names, "%s%s", sep, + get_pgxc_nodename(PGXCNodeGetNodeOid(node_no, + PGXC_NODE_DATANODE))); + sep = ", "; + } + ExplainPropertyText("Node/s", node_names->data, es); + } + } + + /* Remote query statement */ + if (es->verbose) + ExplainPropertyText("Remote query", + plan->sql_statement, es); +} +#endif + /* * Emit opening or closing XML tag. * |