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Improved lookup query performance

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This commit is contained in:
Intelli 2022-01-31 20:03:07 -07:00
parent 286cf2afb9
commit 591110cbb2
1 changed files with 14 additions and 5 deletions
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19
src/main/java/net/coreprotect/database/Lookup.java
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@ -284,6 +284,7 @@ public class Lookup extends Queue {
String queryEntity = "";
String queryLimit = "";
String queryTable = "block";
String unionLimit = "";
String action = "";
String includeBlock = "";
String includeEntity = "";
@ -562,6 +563,7 @@ public class Lookup extends Queue {
String baseQuery = ((!includeEntity.isEmpty() || !excludeEntity.isEmpty()) ? queryEntity : queryBlock);
if (limitOffset > -1 && limitCount > -1) {
queryLimit = " LIMIT " + limitOffset + ", " + limitCount + "";
unionLimit = " ORDER BY time DESC, id DESC LIMIT " + (limitOffset + limitCount) + "";
}
String rows = "rowid as id,time,user,wid,x,y,z,action,type,data,meta,blockdata,rolled_back";
@ -599,6 +601,7 @@ public class Lookup extends Queue {
if (count) {
rows = "COUNT(*) as count";
queryLimit = " LIMIT 0, 3";
unionLimit = "";
queryOrder = "";
}
@ -617,9 +620,12 @@ public class Lookup extends Queue {
if (users.length() > 0) {
index = "USE INDEX(user) ";
}
if ((radius != null || actionList.contains(5)) || (index.equals("") && restrictWorld)) {
if ((index.equals("") && restrictWorld)) {
index = "USE INDEX(wid) ";
}
if ((radius != null || actionList.contains(5))) {
index = "";
}
}
}
else {
@ -630,9 +636,12 @@ public class Lookup extends Queue {
if (users.length() > 0) {
index = "INDEXED BY block_user_index ";
}
if ((radius != null || actionList.contains(5)) || (index.equals("") && restrictWorld)) {
if ((index.equals("") && restrictWorld)) {
index = "INDEXED BY block_index ";
}
if ((radius != null || actionList.contains(5))) {
index = "";
}
}
}
@ -646,7 +655,7 @@ public class Lookup extends Queue {
baseQuery = baseQuery.replace("action NOT IN(-1)", "action NOT IN(3)"); // if block specified for include/exclude, filter out entity data
}
query = "SELECT " + rows + " FROM " + ConfigHandler.prefix + queryTable + " " + index + "WHERE" + baseQuery + " UNION ";
query = "(SELECT " + rows + " FROM " + ConfigHandler.prefix + queryTable + " " + index + "WHERE" + baseQuery + unionLimit + ") UNION ALL ";
itemLookup = true;
}
@ -654,13 +663,13 @@ public class Lookup extends Queue {
if (!count) {
rows = "rowid as id,time,user,wid,x,y,z,type,metadata,data,amount,action,rolled_back";
}
query = query + "SELECT " + rows + " FROM " + ConfigHandler.prefix + "container WHERE" + queryBlock + " UNION ";
query = query + "(SELECT " + rows + " FROM " + ConfigHandler.prefix + "container " + index + "WHERE" + queryBlock + unionLimit + ") UNION ALL ";
if (!count) {
rows = "rowid as id,time,user,wid,x,y,z,type,data as metadata,0 as data,amount,action,0 as rolled_back";
queryOrder = " ORDER BY time DESC, id DESC";
}
query = query + "SELECT " + rows + " FROM " + ConfigHandler.prefix + "item WHERE" + queryBlock;
query = query + "(SELECT " + rows + " FROM " + ConfigHandler.prefix + "item " + index + "WHERE" + queryBlock + unionLimit + ")";
}
if (query.length() == 0) {