--- /dev/null
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+ xmlns:dc="http://purl.org/dc/elements/1.1/"
+ xmlns:cc="http://creativecommons.org/ns#"
+ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+ xmlns:svg="http://www.w3.org/2000/svg"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ width="330.31494"
+ height="124.87304"
+ id="svg2"
+ version="1.1"
+ inkscape:version="0.48.4 r9939"
+ sodipodi:docname="explain_plan.svg">
+ <defs
+ id="defs4" />
+ <sodipodi:namedview
+ id="base"
+ pagecolor="#ffffff"
+ bordercolor="#666666"
+ borderopacity="1.0"
+ inkscape:pageopacity="0.0"
+ inkscape:pageshadow="2"
+ inkscape:zoom="2.9145596"
+ inkscape:cx="52.450126"
+ inkscape:cy="82.881477"
+ inkscape:document-units="px"
+ inkscape:current-layer="layer1"
+ showgrid="true"
+ inkscape:snap-global="true"
+ fit-margin-top="3"
+ fit-margin-left="3"
+ fit-margin-right="3"
+ fit-margin-bottom="3"
+ inkscape:window-width="1631"
+ inkscape:window-height="1026"
+ inkscape:window-x="1249"
+ inkscape:window-y="407"
+ inkscape:window-maximized="1"
+ units="pt">
+ <inkscape:grid
+ type="xygrid"
+ id="grid2985"
+ empspacing="5"
+ visible="true"
+ enabled="true"
+ snapvisiblegridlinesonly="true"
+ originx="-107.10693px"
+ originy="-818.75391px" />
+ </sodipodi:namedview>
+ <metadata
+ id="metadata7">
+ <rdf:RDF>
+ <cc:Work
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title></dc:title>
+ </cc:Work>
+ </rdf:RDF>
+ </metadata>
+ <g
+ inkscape:label="Layer 1"
+ inkscape:groupmode="layer"
+ id="layer1"
+ transform="translate(-107.10693,-108.73524)">
+ <g
+ id="g3081"
+ transform="translate(0,-1.3320312e-6)"
+ style="fill:#ec1100;fill-opacity:1">
+ <text
+ sodipodi:linespacing="125%"
+ id="text2987"
+ y="192.36218"
+ x="160"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ec1100;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="192.36218"
+ x="160"
+ id="tspan2989"
+ sodipodi:role="line">Role</tspan></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text2991"
+ y="192.36218"
+ x="285"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ec1100;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="192.36218"
+ x="285"
+ id="tspan2993"
+ sodipodi:role="line" /></text>
+ </g>
+ <g
+ id="g3075"
+ transform="translate(-15.6665,-19.516785)"
+ style="fill:#14437c;fill-opacity:1">
+ <text
+ sodipodi:linespacing="125%"
+ id="text2995"
+ y="147.36218"
+ x="215"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#14437c;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ style="font-size:32px;fill:#14437c;fill-opacity:1"
+ y="147.36218"
+ x="215"
+ id="tspan2997"
+ sodipodi:role="line">⨝</tspan></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text3001"
+ y="152.36218"
+ x="235"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#14437c;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ style="font-size:10px;fill:#14437c;fill-opacity:1"
+ y="152.36218"
+ x="235"
+ id="tspan3003"
+ sodipodi:role="line">role.pid = people.pid</tspan></text>
+ </g>
+ <text
+ xml:space="preserve"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ x="254.32658"
+ y="112.34022"
+ id="text3013"
+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
+ id="tspan3015"
+ x="254.32658"
+ y="112.34022" /></text>
+ <path
+ style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+ d="m 185,177.36218 50,-40"
+ id="path3087"
+ inkscape:connector-curvature="0" />
+ <path
+ style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+ d="m 300,177.36218 -45,-40"
+ id="path3089"
+ inkscape:connector-curvature="0"
+ sodipodi:nodetypes="cc" />
+ <g
+ id="g3109"
+ transform="translate(-5.3601685,0.84391091)">
+ <text
+ sodipodi:linespacing="125%"
+ id="text3095"
+ y="156.85809"
+ x="341.37579"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="156.85809"
+ x="341.37579"
+ sodipodi:role="line"
+ id="tspan3073" /></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text3101"
+ y="121.51828"
+ x="340.36017"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="121.51828"
+ x="340.36017"
+ id="tspan3103"
+ sodipodi:role="line">Hash Join join</tspan></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text3105"
+ y="84.462944"
+ x="340.36017"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="84.462944"
+ x="340.36017"
+ id="tspan3107"
+ sodipodi:role="line" /></text>
+ </g>
+ <path
+ style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+ d="m 305.20937,216.41809 0,-25"
+ id="path3091-5"
+ inkscape:connector-curvature="0" />
+ <text
+ xml:space="preserve"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ x="110"
+ y="192.36218"
+ id="text3081-9"
+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
+ x="110"
+ y="192.36218"
+ id="tspan3089-4">Scan</tspan></text>
+ <text
+ xml:space="preserve"
+ style="font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#8bb400;fill-opacity:1;stroke:none;font-family:URW Bookman L;-inkscape-font-specification:URW Bookman L"
+ x="300"
+ y="187.36218"
+ id="text3049"
+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
+ id="tspan3051"
+ x="300"
+ y="187.36218"
+ style="font-size:20px;font-weight:bold;-inkscape-font-specification:URW Bookman L Bold;fill:#8bb400;fill-opacity:1">#</tspan></text>
+ <g
+ id="g3081-2"
+ transform="translate(95.000001,34.999999)"
+ style="fill:#ff7f00;fill-opacity:1">
+ <text
+ sodipodi:linespacing="125%"
+ id="text2987-2"
+ y="192.36218"
+ x="195"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ff7f00;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="192.36218"
+ x="195"
+ id="tspan2989-7"
+ sodipodi:role="line">People</tspan></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text2991-1"
+ y="192.36218"
+ x="285"
+ style="font-size:12px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ff7f00;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="192.36218"
+ x="285"
+ id="tspan2993-5"
+ sodipodi:role="line" /></text>
+ </g>
+ <text
+ xml:space="preserve"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ x="350"
+ y="227.36218"
+ id="text3081-9-4"
+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
+ x="350"
+ y="227.36218"
+ id="tspan3089-4-5">Scan</tspan></text>
+ <text
+ xml:space="preserve"
+ style="font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:URW Bookman L;-inkscape-font-specification:URW Bookman L"
+ x="284.09094"
+ y="106.9535"
+ id="text3108"
+ sodipodi:linespacing="125%"
+ transform="translate(50.417285,74.609394)"><tspan
+ sodipodi:role="line"
+ id="tspan3110"
+ x="284.09094"
+ y="106.9535" /></text>
+ <g
+ id="g3109-6"
+ transform="translate(-15.360168,60.843901)">
+ <text
+ sodipodi:linespacing="125%"
+ id="text3095-3"
+ y="156.85809"
+ x="341.37579"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="156.85809"
+ x="341.37579"
+ sodipodi:role="line"
+ id="tspan3073-9" /></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text3101-1"
+ y="121.51828"
+ x="340.36017"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="121.51828"
+ x="340.36017"
+ id="tspan3103-8"
+ sodipodi:role="line">Table de hash en</tspan><tspan
+ y="137.76828"
+ x="340.36017"
+ sodipodi:role="line"
+ id="tspan3148">mémoire</tspan></text>
+ <text
+ sodipodi:linespacing="125%"
+ id="text3105-9"
+ y="84.462944"
+ x="340.36017"
+ style="font-size:13px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans"
+ xml:space="preserve"><tspan
+ y="84.462944"
+ x="340.36017"
+ id="tspan3107-3"
+ sodipodi:role="line" /></text>
+ </g>
+ </g>
+</svg>