LOG:  statement: select carnet, nombre, apellido
        from estudiante
        where ciudadproc='Maracay' and edad=joven;
DEBUG:  parse tree:
DETAIL:  {QUERY :commandType 1 :querySource 0 :canSetTag true :utilityStmt <>
        :resultRelation 0 :into <> :intoOptions <> :intoOnCommit 0 :intoTableSpaceName
        <> :hasAggs false :hasSubLinks false :rtable ({RTE :alias <> :eref {ALIAS
        :aliasname estudiante :colnames ("carnet" "nombre" "apellido" "edad"
        "ciudadproc" "promedio")} :rtekind 0 :relid 16385 :inh true :inFromCl true
        :requiredPerms 2 :checkAsUser 0}) :jointree {FROMEXPR :fromlist ({RANGETBLREF
        :rtindex 1}) :quals {BOOLEXPR :boolop and :args ({OPEXPR :opno 1054 :opfuncid
        0 :opresulttype 16 :opretset false :args ({VAR :varno 1 :varattno 5 :vartype
        1042 :vartypmod 14 :varlevelsup 0 :varnoold 1 :varoattno 5} {CONST :consttype
        1042 :constlen -1 :constbyval false :constisnull false :constvalue 11 [ 11 0 0
        0 77 97 114 97 99 97 121 ]})} {OPEXPR :opno 96 :opfuncid 0 :opresulttype 16
        :opretset false :args ({VAR :varno 1 :varattno 4 :vartype 23 :vartypmod -1
        :varlevelsup 0 :varnoold 1 :varoattno 4} {FUZZY_PRED :type 801 :pred joven
        :minfp 0 :core1 0 :core2 20 :maxfp 50 :typefp 2})})}} :targetList
        ({TARGETENTRY :expr {VAR :varno 1 :varattno 1 :vartype 23 :vartypmod -1
        :varlevelsup 0 :varnoold 1 :varoattno 1} :resno 1 :resname carnet
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 1 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 2 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 2} :resno 2 :resname nombre
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 2 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 3 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 3} :resno 3 :resname apellido
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 3 :resjunk false})
        :returningList <> :groupClause <> :havingQual <> :distinctClause <>
        :sortClause <> :limitOffset <> :limitCount <> :rowMarks <> :setOperations <>
        :resultRelations <> :returningLists <>}

DEBUG:  rewritten parse tree:
DETAIL:  ({QUERY :commandType 1 :querySource 0 :canSetTag true :utilityStmt <>
        :resultRelation 0 :into <> :intoOptions <> :intoOnCommit 0 :intoTableSpaceName
        <> :hasAggs false :hasSubLinks false :rtable ({RTE :alias <> :eref {ALIAS
        :aliasname estudiante :colnames ("carnet" "nombre" "apellido" "edad"
        "ciudadproc" "promedio")} :rtekind 0 :relid 16385 :inh true :inFromCl true
        :requiredPerms 2 :checkAsUser 0}) :jointree {FROMEXPR :fromlist ({RANGETBLREF
        :rtindex 1}) :quals {BOOLEXPR :boolop and :args ({OPEXPR :opno 1054 :opfuncid
        0 :opresulttype 16 :opretset false :args ({VAR :varno 1 :varattno 5 :vartype
        1042 :vartypmod 14 :varlevelsup 0 :varnoold 1 :varoattno 5} {CONST :consttype
        1042 :constlen -1 :constbyval false :constisnull false :constvalue 11 [ 11 0 0
        0 77 97 114 97 99 97 121 ]})} {OPEXPR :opno 96 :opfuncid 0 :opresulttype 16
        :opretset false :args ({VAR :varno 1 :varattno 4 :vartype 23 :vartypmod -1
        :varlevelsup 0 :varnoold 1 :varoattno 4} {FUZZY_PRED :type 801 :pred joven
        :minfp 0 :core1 0 :core2 20 :maxfp 50 :typefp 2})})}} :targetList
        ({TARGETENTRY :expr {VAR :varno 1 :varattno 1 :vartype 23 :vartypmod -1
        :varlevelsup 0 :varnoold 1 :varoattno 1} :resno 1 :resname carnet
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 1 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 2 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 2} :resno 2 :resname nombre
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 2 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 3 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 3} :resno 3 :resname apellido
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 3 :resjunk false})
        :returningList <> :groupClause <> :havingQual <> :distinctClause <>
        :sortClause <> :limitOffset <> :limitCount <> :rowMarks <> :setOperations <>
        :resultRelations <> :returningLists <>})

DEBUG:  plan:
DETAIL:  {SEQSCAN :startup_cost 0.00 :total_cost 22.45 :plan_rows 1 :plan_width 42
        :targetlist ({TARGETENTRY :expr {VAR :varno 1 :varattno 1 :vartype 23
        :vartypmod -1 :varlevelsup 0 :varnoold 1 :varoattno 1} :resno 1 :resname
        carnet :ressortgroupref 0 :resorigtbl 16385 :resorigcol 1 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 2 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 2} :resno 2 :resname nombre
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 2 :resjunk false}
        {TARGETENTRY :expr {VAR :varno 1 :varattno 3 :vartype 1042 :vartypmod 19
        :varlevelsup 0 :varnoold 1 :varoattno 3} :resno 3 :resname apellido
        :ressortgroupref 0 :resorigtbl 16385 :resorigcol 3 :resjunk false}) :qual
        ({OPEXPR :opno 1054 :opfuncid 1048 :opresulttype 16 :opretset false :args
        ({VAR :varno 1 :varattno 5 :vartype 1042 :vartypmod 14 :varlevelsup 0
        :varnoold 1 :varoattno 5} {CONST :consttype 1042 :constlen -1 :constbyval
        false :constisnull false :constvalue 11 [ 11 0 0 0 77 97 114 97 99 97 121 ]})}
        {OPEXPR :opno 96 :opfuncid 65 :opresulttype 16 :opretset false :args ({VAR
        :varno 1 :varattno 4 :vartype 23 :vartypmod -1 :varlevelsup 0 :varnoold 1
        :varoattno 4} {FUZZY_PRED :type 801 :pred joven :minfp 0 :core1 0 :core2 20
        :maxfp 50 :typefp 2})}) :lefttree <> :righttree <> :initPlan <> :extParam (b)
        :allParam (b) :nParamExec 0 :scanrelid 1}

ERROR:  unrecognized node type: 801
STATEMENT:  select carnet, nombre, apellido
        from estudiante
        where ciudadproc='Maracay' and edad=joven;